The following subsections discuss the correct format for various types of in-text citations. Read them through quickly to get a sense of what is covered, and then refer to them again as needed.
Print Sources
This section covers books, articles, and other print sources with one or more authors.
A Work by One Author
For a print work with one author, follow the guidelines provided in the JIBC APA Reference Guide. Always include the author’s name and year of publication. Include a page reference whenever you quote a source directly. (See also the guidelines presented earlier in this chapter about when to include a page reference for paraphrased material.)
Chang (2008) emphasized that “engaging in weight-bearing exercise consistently is one of the single best things women can do to maintain good health” (p. 49).
Chang (2008) pointed out that weight-bearing exercise has many potential benefits for women.
Two or More Works by the Same Author
At times, your research may include multiple works by the same author. If the works were published in different years, a standard in-text citation will serve to distinguish them. If you are citing multiple works by the same author published in the same year, include a lowercase letter immediately after the year. Rank the sources in the order they appear in your references section. The source listed first should include an a after the year, the source listed second should include a b, and so on.
Rodriguez (2009a) criticized the nutrition supplement industry for making unsubstantiated and sometimes misleading claims about the benefits of taking supplements. Additionally, he warned that consumers frequently do not realize the potential harmful effects of some popular supplements (Rodriguez, 2009b).
The author’s last name is again mentioned in the final citation despite it being used in the attributive tag. In this case, this is acceptable because this is referring to a different source written by the same person.
Works by Authors with the Same Last Name
If you are citing works by different authors with the same last name, include each author’s initials in your citation, whether you mention them in the text or in parentheses. Do so even if the publication years are different.
J. S. Williams (2007) believes nutritional supplements can be a useful part of some diet and fitness regimens. C. D. Williams (2008), however, believes these supplements are overrated.
According to two leading researchers, the rate of childhood obesity exceeds the rate of adult obesity (K. Connelley, 2010; O. Connelley, 2010).
Studies from both A. Wright (2007) and C. A. Wright (2008) confirm the benefits of diet and exercise on weight loss.
A Work by Two Authors
When two authors are listed for a given work, include both authors’ names each time you cite the work. If you are citing their names in parentheses, use an ampersand (&) between them. (Use the word and, however, if the names appear in your sentence.)
As Garrison and Gould (2010) pointed out, “It is never too late to quit smoking. The health risks associated with this habit begin to decrease soon after a smoker quits” (p. 101).
As doctors continue to point out, “It is never too late to quit smoking. The health risks associated with this habit begin to decrease soon after a smoker quits” (Garrison & Gould, 2010, p. 101).
A Work by Three to Five Authors
If the work you are citing has three to five authors, list all the authors’ names the first time you cite the source. In subsequent citations, use the first author’s name followed by the abbreviation et al. (Et al. is short for et alia, the Latin phrase for “and others.”)
Henderson, Davidian, and Degler (2010) surveyed 350 smokers aged 18 to 30.
One survey, conducted among 350 smokers aged 18 to 30, included a detailed questionnaire about participants’ motivations for smoking (Henderson, Davidian, & Degler, 2010).
Note that these examples follow the same ampersand conventions as sources with two authors. Again, use the ampersand only when listing authors’ names in parentheses.
As Henderson et al. (2010) found, some young people, particularly young women, use smoking as a means of appetite suppression.
Disturbingly, some young women use smoking as a means of appetite suppression (Henderson et al., 2010).
Note how the phrase et al. is punctuated. There is no period comes after et, but there is one with al. because it is an abbreviation for a longer Latin word. In parenthetical references, include a comma after et al. but not before. Remember this rule by mentally translating the citation to English: “Henderson and others, 2010.”
A Work by Six or More Authors
If the work you are citing has six or more authors, list only the first author’s name, followed by et al., in your in-text citations. The other authors’ names will be listed in your references section.
Researchers have found that outreach work with young people has helped reduce tobacco use in some communities (Costello et al., 2007).
A Work Authored by an Organization
When citing a work that has no individual author but is published by an organization, use the organization’s name in place of the author’s name. Lengthy organization names with well-known abbreviations can be abbreviated. In your first citation, use the full name, followed by the abbreviation in square brackets. Subsequent citations may use the abbreviation only.
It is possible for a patient to have a small stroke without even realizing it (American Heart Association [AHA], 2010).
Another cause for concern is that even if patients realize that they have had a stroke and need medical attention, they may not know which nearby facilities are best equipped to treat them (AHA, 2010).
A Work with No Listed Author
If no author is listed and the source cannot be attributed to an organization, use the title in place of the author’s name. You may use the full title in your sentence or use the first few words—enough to convey the key ideas—in a parenthetical reference. Follow standard conventions for using italics or quotations marks with titles:
Use italics for titles of books or reports.
Use quotation marks for titles of articles or chapters.
“Living With Diabetes: Managing Your Health” (2009) recommends regular exercise for patients with diabetes.
Regular exercise can benefit patients with diabetes (“Living with Diabetes,” 2009).
A Work Cited within Another Work
To cite a source that is referred to within another secondary source, name the first source in your sentence. Then, in parentheses, use the phrase as cited in and the name of the second source author.
Rosenhan’s study “On Being Sane in Insane Places” (as cited in Spitzer, 1975) found that psychiatrists diagnosed schizophrenia in people who claimed to be experiencing hallucinations and sought treatment—even though these patients were, in fact, imposters.
Two or More Works Cited in One Reference
At times, you may provide more than one citation in a parenthetical reference, such as when you are discussing related works or studies with similar results. List the citations in the same order they appear in your references section, and separate the citations with a semicolon.
Some researchers have found serious flaws in the way Rosenhan’s study was conducted (Dawes, 2001; Spitzer, 1975).
Both of these researchers authored works that support the point being made in this sentence, so it makes sense to include both in the same citation.
A Famous Text Published in Multiple Editions
In some cases, you may need to cite an extremely well-known work that has been repeatedly republished or translated. Many works of literature and sacred texts, as well as some classic nonfiction texts, fall into this category. For these works, the original date of publication may be unavailable. If so, include the year of publication or translation for your edition. Refer to specific parts or chapters if you need to cite a specific section. Discuss with your instructor whether he or she would like you to cite page numbers in this particular instance.
In New Introductory Lectures on Psycho Analysis, Freud explains that the “manifest content” of a dream—what literally takes place—is separate from its “latent content,” or hidden meaning (trans. 1965, lecture XXIX).
In this example, the student is citing a classic work of psychology, originally written in German and later translated to English. Since the book is a collection of Freud’s lectures, the student cites the lecture number rather than a page number.
An Introduction, Foreword, Preface, or Afterword
To cite an introduction, foreword, preface, or afterword, cite the author of the material and the year, following the same format used for other print materials.
Electronic Sources
Whenever possible, cite electronic sources as you would print sources, using the author, the date, and where appropriate, a page number. For some types of electronic sources—for instance, many online articles—this information is easily available. Other times, however, you will need to vary the format to reflect the differences in online media.
Online Sources without Page Numbers
If an online source has no page numbers but you want to refer to a specific portion of the source, try to locate other information you can use to direct your reader to the information cited. Some websites number paragraphs within published articles; if so, include the paragraph number in your citation. Precede the paragraph number with the abbreviation for the word paragraph and the number of the paragraph (e.g., para. 4).
As researchers have explained, “Incorporating fresh fruits and vegetables into one’s diet can be a challenge for residents of areas where there are few or no easily accessible supermarkets” (Smith & Jones, 2006, para. 4).
Even if a source does not have numbered paragraphs, it is likely to have headings that organize the content. In your citation, name the section where your cited information appears, followed by a paragraph number.
The American Lung Association (2010) noted, “After smoking, radon exposure is the second most common cause of lung cancer” (What Causes Lung Cancer? section, para. 2).
This student cited the appropriate section heading within the website and then counted to find the specific paragraph where the cited information was located.
If an online source has no listed author and no date, use the source title and the abbreviation n.d. in your parenthetical reference.
It has been suggested that electromagnetic radiation from cellular telephones may pose a risk for developing certain cancers (“Cell Phones and Cancer,” n.d.).