Rescher, N. (2009). Epistemological studies. Ontos Verlag.
Lua i Stíl Chicago (17ú heag.)Rescher, Nicholas. Epistemological Studies. Frankfurt: Ontos Verlag, 2009.
Lua MLA (9ú heag.)Rescher, Nicholas. Epistemological Studies. Ontos Verlag, 2009.
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