APA (7th ed.) Citation

GRUBER'S, G. R. (1982). Shortcuts and strategies for the GMAT. Monarch Press.

Chicago Style (17th ed.) Citation

GRUBER'S, Gary R. Shortcuts and Strategies for the GMAT. New York: Monarch Press, 1982.

MLA (8th ed.) Citation

GRUBER'S, Gary R. Shortcuts and Strategies for the GMAT. Monarch Press, 1982.