Urmson, J. O. (1989). The concise encyclopedia of western philosophy and philosophers (New ed., completely rev.). Unwin Hyman.
Chicago Style (17th ed.) CitationUrmson, J. O. The Concise Encyclopedia of Western Philosophy and Philosophers. New ed., completely rev. London: Unwin Hyman, 1989.
MLA (9th ed.) CitationUrmson, J. O. The Concise Encyclopedia of Western Philosophy and Philosophers. New ed., completely rev. Unwin Hyman, 1989.
Warning: These citations may not always be 100% accurate.