APA-referens (7:e uppl.)
Jaffe, E. D., & Hilbert, S. (2005). How to Prepare for the Graduate Management Admission Test: Barron's GMAT (13th ed.). Barron's Educational Series.
Chicago-referens (17:e uppl.)
Jaffe, Eugene D., och Stephen Hilbert. How to Prepare for the Graduate Management Admission Test: Barron's GMAT. 13th ed. New York: Barron's Educational Series, 2005.
MLA-referens (9:e uppl.)
Jaffe, Eugene D., och Stephen Hilbert. How to Prepare for the Graduate Management Admission Test: Barron's GMAT. 13th ed. Barron's Educational Series, 2005.
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