Educational Testing Service & Graduate Management Admission Council. (1994). The Official guide for GMAT review (7th edition.). GMAT Program Direction Office, Educational Testing Service.
Chicago-viite (17. p.)Educational Testing Service ja Graduate Management Admission Council. The Official Guide for GMAT Review. 7th edition. Princeton, New Jersey: GMAT Program Direction Office, Educational Testing Service, 1994.
MLA-viite (9. p.)Educational Testing Service ja Graduate Management Admission Council. The Official Guide for GMAT Review. 7th edition. GMAT Program Direction Office, Educational Testing Service, 1994.
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