Hume, P. (2013). Hume, Paul, Papers. DigitalGeorgetown.
Lua i Stíl Chicago (17ú heag.)Hume, Paul. Hume, Paul, Papers. Washington, D.C.: DigitalGeorgetown, 2013.
Lua MLA (8ú heag.)Hume, Paul. Hume, Paul, Papers. DigitalGeorgetown, 2013.
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