Cita APA (7a ed.)

Copleston, F. (1993). A history of philosophy. Doubleday.

Cita Chicago Style (17a ed.)

Copleston, Frederick. A History of Philosophy. New York ; London: Doubleday, 1993.

Cita MLA (8a ed.)

Copleston, Frederick. A History of Philosophy. Doubleday, 1993.