Cita APA (7a ed.)

Janet, P., & Chapman, M. (1898). The theory of morals. C. Scribner's Sons.

Cita Chicago Style (17a ed.)

Janet, Paul, y Mary Chapman. The Theory of Morals. New York: C. Scribner's Sons, 1898.

Cita MLA (8a ed.)

Janet, Paul, y Mary Chapman. The Theory of Morals. C. Scribner's Sons, 1898.