APA (7th ed.) Citation

Mackenzie, P. T. (1989). The problems of philosophers: An introduction. Prometheus Books.

Chicago Style (17th ed.) Citation

Mackenzie, Patrick T. The Problems of Philosophers: An Introduction. Buffalo, N.Y.: Prometheus Books, 1989.

MLA (9th ed.) Citation

Mackenzie, Patrick T. The Problems of Philosophers: An Introduction. Prometheus Books, 1989.