Cita APA (7a ed.)

Bowling Green State University. Philosophy Documentation Center, Cormier, R., Lineback, R. H., Kurtz, P., Varet, G., & Shurts, M. (1990). International directory of philosophy and philosophers (7th ed. 1990-1992.). Philosophy Documentation Center.

Cita Chicago Style (17a ed.)

Bowling Green State University. Philosophy Documentation Center, Ramona Cormier, Richard H. Lineback, Paul Kurtz, Gilbert Varet, y Mary Shurts. International Directory of Philosophy and Philosophers. 7th ed. 1990-1992. Bowling Green: Philosophy Documentation Center, 1990.

Cita MLA (9a ed.)

Bowling Green State University. Philosophy Documentation Center, et al. International Directory of Philosophy and Philosophers. 7th ed. 1990-1992. Philosophy Documentation Center, 1990.