Cita APA (7a ed.)

Weber, K. (1998). The Unofficial guide to th GRE. Macmillan.

Cita Chicago Style (17a ed.)

Weber, Karl. The Unofficial Guide to Th GRE. New York: Macmillan, 1998.

Cita MLA (8a ed.)

Weber, Karl. The Unofficial Guide to Th GRE. Macmillan, 1998.