Warburton, N. (1999). Philosophy: The basics (Third edition.). Routledge.
Dyfyniad Arddull ChicagoWarburton, Nigel. Philosophy: The Basics. Third edition. London ; New York: Routledge, 1999.
Dyfyniad MLAWarburton, Nigel. Philosophy: The Basics. Third edition. Routledge, 1999.
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