Jaffe, E. D., & Hilbert, S. (2004). GMAT: How to prepare for the graduate management admission test (13th ed.). Hauppauge, NY.: Barron's.
Παραπομπή Chicago StyleJaffe, Eugene D., and Stephen Hilbert. GMAT: How to Prepare for the Graduate Management Admission Test. 13th ed. Hauppauge, NY.: Barron's, 2004.
Παραπομπή MLAJaffe, Eugene D., and Stephen Hilbert. GMAT: How to Prepare for the Graduate Management Admission Test. 13th ed. Hauppauge, NY.: Barron's, 2004.
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