Cita APA (7th ed.)

Harrison & Anthony. (1999). Mastering Philosophy. Palgrave Macmillan.

Cita Chicago (17th ed.)

Harrison i Anthony. Mastering Philosophy. London: Palgrave Macmillan, 1999.

Cita MLA (9th ed.)

Harrison i Anthony. Mastering Philosophy. Palgrave Macmillan, 1999.