APA (7th ed.) Citation

Callahan, J. F. (1968). Four views of time in ancient philosophy. Greenwood Press.

Chicago Style (17th ed.) Citation

Callahan, John Francis. Four Views of Time in Ancient Philosophy. New York,: Greenwood Press, 1968.

MLA (8th ed.) Citation

Callahan, John Francis. Four Views of Time in Ancient Philosophy. Greenwood Press, 1968.