Cita APA (7th ed.)
Ross, R., & Haag, E. V. D. (1957). Symbols & civilization science, morals, religion, art. Harcourt, Brace & World Inc..
Cita Chicago (17th ed.)
Ross, Ralph, i Ernest Van Den Haag. Symbols & Civilization Science, Morals, Religion, Art. New York: Harcourt, Brace & World Inc., 1957.
Cita MLA (9th ed.)
Ross, Ralph, i Ernest Van Den Haag. Symbols & Civilization Science, Morals, Religion, Art. Harcourt, Brace & World Inc., 1957.
Atenció: Aquestes cites poden no estar 100% correctes.