Jaffe, E. D., & Hilbert, S. (2005). How to prepare for the graduate management admission test: Barron's GMAT. Barron's.
Chicago Style aipamenaJaffe, Eugene D., and Stephen Hilbert. How to Prepare for the Graduate Management Admission Test: Barron's GMAT. Hauppauge, N.Y.: Barron's, 2005.
MLA aipamenaJaffe, Eugene D., and Stephen Hilbert. How to Prepare for the Graduate Management Admission Test: Barron's GMAT. Barron's, 2005.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.