Cita APA

Schweitzer, A., & Campion, C. (1949). The philosophy of civilization (1st ed. --.). New York: Macmillan.

Citación estilo Chicago

Schweitzer, Albert, y C.T. Campion. The Philosophy of Civilization. 1st ed. --. New York: Macmillan, 1949.

Cita MLA

Schweitzer, Albert, y C.T. Campion. The Philosophy of Civilization. 1st ed. --. New York: Macmillan, 1949.