Kaunitz, M. (1941). A popular history of philosophy. The worl publishing Company.
Lua i Stíl Chicago (17ú heag.)Kaunitz, Maurice. A Popular History of Philosophy. Estados Unidos: The worl publishing Company, 1941.
Lua MLA (9ú heag.)Kaunitz, Maurice. A Popular History of Philosophy. The worl publishing Company, 1941.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.