Russell, B. (1964). Human Knowledge. Simon & Schuster.
Lua i Stíl Chicago (17ú heag.)Russell, Bertrand. Human Knowledge. New york: Simon & Schuster, 1964.
Lua MLA (9ú heag.)Russell, Bertrand. Human Knowledge. Simon & Schuster, 1964.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.