Cita APA (7a ed.)

Vaske, M. O. (1980). A philosophy of morality. Creighton University Press.

Cita Chicago Style (17a ed.)

Vaske, Martin O. A Philosophy of Morality. Omaha: Creighton University Press, 1980.

Cita MLA (9a ed.)

Vaske, Martin O. A Philosophy of Morality. Creighton University Press, 1980.