Cita APA (7th ed.)

Warburton, N. (1999). Philosophy: The basics (Third edition.). Routledge.

Cita Chicago (17th ed.)

Warburton, Nigel. Philosophy: The Basics. Third edition. London ; New York: Routledge, 1999.

Cita MLA (8th ed.)

Warburton, Nigel. Philosophy: The Basics. Third edition. Routledge, 1999.