Cita APA (7a ed.)

Callaban, J. F. (1948). Four views of time in ancient philosophy. Harvard University.

Cita Chicago Style (17a ed.)

Callaban, John F. Four Views of Time in Ancient Philosophy. Cambridge: Harvard University, 1948.

Cita MLA (8a ed.)

Callaban, John F. Four Views of Time in Ancient Philosophy. Harvard University, 1948.