Shand, J. (2009). Central issues of philosophy. Wiley-Blackwell.
Lua i Stíl Chicago (17ú heag.)Shand, John. Central Issues of Philosophy. Chichester, [England]: Wiley-Blackwell, 2009.
Lua MLA (9ú heag.)Shand, John. Central Issues of Philosophy. Wiley-Blackwell, 2009.
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