APA-referens (7:e uppl.)

Runes, D. D. (1964). Dictionary of philosophy (15th ed., rev.). Littlefield, Adams.

Chicago-referens (17:e uppl.)

Runes, Dagobert David. Dictionary of Philosophy. 15th ed., rev. Paterson, N.Y: Littlefield, Adams, 1964.

MLA-referens (9:e uppl.)

Runes, Dagobert David. Dictionary of Philosophy. 15th ed., rev. Littlefield, Adams, 1964.