Lua APA (7ú heag.)
ebrary, Inc, De Waal, C., & Skowroński, K. P. (2012). The normative thought of Charles S. Peirce. Fordham University Press.
Lua i Stíl Chicago (17ú heag.)
ebrary, Inc, Cornelis De Waal, agus Krzysztof Piotr Skowroński. The Normative Thought of Charles S. Peirce. New York: Fordham University Press, 2012.
Lua MLA (9ú heag.)
ebrary, Inc, et al. The Normative Thought of Charles S. Peirce. Fordham University Press, 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.