Cita APA (7a ed.)

Sinclair, W. A. (1964). An introduction to philosophy (1st [ed.], repr.). Oxford University Press.

Cita Chicago Style (17a ed.)

Sinclair, William Angus. An Introduction to Philosophy. 1st [ed.], repr. Toronto: Oxford University Press, 1964.

Cita MLA (9a ed.)

Sinclair, William Angus. An Introduction to Philosophy. 1st [ed.], repr. Oxford University Press, 1964.