APA (7th ed.) Citation

Crombie, I. M. (1962). An examination of Plato's doctrines. Humanities Press.

Chicago Style (17th ed.) Citation

Crombie, I. M. An Examination of Plato's Doctrines. New York: Humanities Press, 1962.

MLA (9th ed.) Citation

Crombie, I. M. An Examination of Plato's Doctrines. Humanities Press, 1962.