Cita APA (7a ed.)

Kupperman, J. J. (1978). Philosophy: The Fundamental problems. St. Martin's.

Cita Chicago Style (17a ed.)

Kupperman, Joel J. Philosophy: The Fundamental Problems. New York: St. Martin's, 1978.

Cita MLA (9a ed.)

Kupperman, Joel J. Philosophy: The Fundamental Problems. St. Martin's, 1978.