Cita APA (7a ed.)

Paton, H. (1971). The categorical imperative: A study in Kant's philosophy. University of Pennsylvania Press.

Cita Chicago Style (17a ed.)

Paton, H.J. The Categorical Imperative: A Study in Kant's Philosophy. Philadelphia, Pa.: University of Pennsylvania Press, 1971.

Cita MLA (8a ed.)

Paton, H.J. The Categorical Imperative: A Study in Kant's Philosophy. University of Pennsylvania Press, 1971.