Educational Testing Service & Graduate Management Admission Council. (1992). The Official guide for GMAT review. GMAT Program Direction Office, Educational Testing Service.
Chicago-Zitierstil (17. Ausg.)Educational Testing Service und Graduate Management Admission Council. The Official Guide for GMAT Review. Princeton, New Jersey: GMAT Program Direction Office, Educational Testing Service, 1992.
MLA-Zitierstil (9. Ausg.)Educational Testing Service und Graduate Management Admission Council. The Official Guide for GMAT Review. GMAT Program Direction Office, Educational Testing Service, 1992.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.