The Concise encyclopedia of western philosophy and philosophers /
edited by J.O. Urmson and Jonathan Ree.

APA Citation

Rée, J., Urmson, J. O. (1989). The Concise encyclopedia of western philosophy and philosophers. New ed., completely rev. London: Unwin Hyman.

MLA Citation

Rée, Jonathan, 1948-, and J. O Urmson. The Concise Encyclopedia of Western Philosophy And Philosophers. New ed., completely rev. London: Unwin Hyman, 1989.

Warning: These citations may not always be complete (especially for serials).