Peirce, C. S. S. (1955). Philosophical writings of Peirce. Dover Publications.
Lua i Stíl Chicago (17ú heag.)Peirce, Charles Santiago Sanders. Philosophical Writings of Peirce. New York: Dover Publications, 1955.
Lua MLA (9ú heag.)Peirce, Charles Santiago Sanders. Philosophical Writings of Peirce. Dover Publications, 1955.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.