APA (7th ed.) Citation

Volkell, R. Z. (1981). GMAT, graduate management admission test: A test preparation guide. Wiley.

Chicago Style (17th ed.) Citation

Volkell, Randolph Z. GMAT, Graduate Management Admission Test: A Test Preparation Guide. New York: Wiley, 1981.

MLA (9th ed.) Citation

Volkell, Randolph Z. GMAT, Graduate Management Admission Test: A Test Preparation Guide. Wiley, 1981.