Cita APA (7a ed.)

Copleston, F. C. (1971). A history of philosophy ([4th impression].). Search Press.

Cita Chicago Style (17a ed.)

Copleston, Frederick C. A History of Philosophy. [4th impression]. London: Search Press, 1971.

Cita MLA (9a ed.)

Copleston, Frederick C. A History of Philosophy. [4th impression]. Search Press, 1971.