Lua APA (7ú heag.)
ebrary, Inc, & Brzeziński, J. (2007). The courage of doing philosophy: Essays presented to Leszek Nowak. Rodopi.
Lua i Stíl Chicago (17ú heag.)
ebrary, Inc, agus Jerzy Brzeziński. The Courage of Doing Philosophy: Essays Presented to Leszek Nowak. Amsterdam: Rodopi, 2007.
Lua MLA (9ú heag.)
ebrary, Inc, agus Jerzy Brzeziński. The Courage of Doing Philosophy: Essays Presented to Leszek Nowak. Rodopi, 2007.
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