Citazione Stile APA (7a Edizione)

MACKENZIE, J. S. (1929). A manual of ethics (6thed.). University Tutorial Press.

Citazione stile Chigago Style (17a edizione)

MACKENZIE, John S. A Manual of Ethics. 6thed. London: University Tutorial Press, 1929.

Citatione MLA (9a ed.)

MACKENZIE, John S. A Manual of Ethics. 6thed. University Tutorial Press, 1929.