Citing a Workbook on Your Reference List
A source cited in APA format is noted on a reference list -- a separate page after the body of your text. To include a workbook on your reference list, note its author, date of publication, title and publisher information. APA arranges this information as follows: Author's Last Name, First Initial(s). (Year of Publication). Title of workbook: Include subtitles if necessary. Publisher's location: Publisher's name.
For example: Bourne, J. (2006). Exercises in espionage. Washington, DC: Investigative Press.
Many workbooks are updated and reprinted over time. Check your workbook's edition information to make sure you're citing the correct item on your reference list. If it's an edition other than the first, this information is included in parentheses after the book title in your citation.
For example: Harder, P.O. (1980). Harmonic materials in tonal music: A programmed course (4th Ed.). Boston, MA: Allyn and Bacon, Inc.
In-Text References for Workbooks
APA style requires that you also note your sources whenever you reference them in your paper, whether it's a quote from the workbook or paraphrasing information found in the workbook. An in-text citation is placed in parentheses after the material you reference and includes the author's last name, the year the workbook was published and the page number on which the information appears.
For example: (Bourne, 2006, p. 98) (Harder, 1980, pp. 47-48)