Cita APA (7a ed.)

O'Connor, D. J. (1968). A critical history of Western philosophy. Free Press.

Cita Chicago Style (17a ed.)

O'Connor, D. J. A Critical History of Western Philosophy. New York: Free Press, 1968.

Cita MLA (9a ed.)

O'Connor, D. J. A Critical History of Western Philosophy. Free Press, 1968.