Παραπομπή σε μορφή APA (7η εκδ.)

Jaffe, E. D., & Hilbert, S. (2007). Barron's GMAT: Graduate Management Admission Test (14th ed.). Barron's Educational Series.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Jaffe, Eugene D., και Stephen Hilbert. Barron's GMAT: Graduate Management Admission Test. 14th ed. Hauppauge, NY: Barron's Educational Series, 2007.

Παραπομπή σε μορφή MLA (9th εκδ.)

Jaffe, Eugene D., και Stephen Hilbert. Barron's GMAT: Graduate Management Admission Test. 14th ed. Barron's Educational Series, 2007.