APA-referens (7:e uppl.)

Jaffe, E. D., & Hilbert, S. (2005). How to prepare for the graduate management admission test: Barron's GMAT. Barron's.

Chicago-referens (17:e uppl.)

Jaffe, Eugene D., och Stephen Hilbert. How to Prepare for the Graduate Management Admission Test: Barron's GMAT. Hauppauge, N.Y.: Barron's, 2005.

MLA-referens (8:e uppl.)

Jaffe, Eugene D., och Stephen Hilbert. How to Prepare for the Graduate Management Admission Test: Barron's GMAT. Barron's, 2005.