Runes, D. D. (1960). Dictionary of philosophy (16th ed., rev.). Philosophical Library.
Lua i Stíl Chicago (17ú heag.)Runes, Dagobert D. Dictionary of Philosophy. 16th ed., rev. New York: Philosophical Library, 1960.
Lua MLA (9ú heag.)Runes, Dagobert D. Dictionary of Philosophy. 16th ed., rev. Philosophical Library, 1960.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
