When a Digital Object identifier (DOI) is available, include it in the citation of both print and electronic sources. If a DOI was assigned to an article it will often appear in small print on the first page of the article. Sometimes the DOI appears in the article record in the database you searched. If a DOI does not appear in the article or in a database, you can use the CrossRef DOI Lookup Service <http://www.crossref.org/guestquery/>
If journal issues are paginated across an entire volume, do NOT include the issue number in the citation. If each issue of a journal starts on page 1, give the issue number in parentheses immediately after the volume number. The volume number is italicized but the parenthetical issue number is not italicized.
Print or Microfilm article - No DOI available
Pearson, J. E. (1987). Test review: The Jenkins Activity Survey. Journal of Mental Health Counseling, 9, 220-226.
Print or Microfilm or Online article - DOI available
Bain, S. K., & Gray, R. (2008). Test reviews: Kaufman Assessment Battery for Children. Journal of Psychoeducational Assessment, 26, 92-101. doi:10.1177/0734282907300461
Online article - No DOI available
When there is no DOI assigned, provide the journal home page web address (URL) if you can find it. Try searching in Google for the complete journal title as a phrase (surrounded by double quotes) to locate the journal home page. Do not provide an entire URL that leads directly to article, but rather just the journal home page address.
Van Hutton, V. (1990). Test review: The California Psychological Inventory. Journal of Counseling & Development, 69, 75-77. Retrieved from http://aca.metapress.com
If you cannot find the journal home page address (URL), for example, the article is published in a discontinued journal or such a page does not exist, and the online content is ONLY available in an electronic database, provide the DATABASE home or entry page URL in the place of the journal home page URL, e.g., Retrieved from http://www.jstor.org
Fawkes, D., Adajian, T., Flage, D., Hoeltzel, S., Knorpp, B., O'Meara, B., & Weber, D. (2001). Examining the exam: A critical look at the Watson-Glaser Critical Thinking Appraisal exam. Inquiry: Critical Thinking across the Disciplines, 20(4), 19-33. Retrieved from http://www.philosophyonline.org