Cita APA (7th ed.)
Merrick, G. (2000). The great urge downward. Alyson.
Cita Chicago (17th ed.)
Merrick, Gordon. The Great Urge Downward. Los Angeles: Alyson, 2000.
Cita MLA (9th ed.)
Merrick, Gordon. The Great Urge Downward. Alyson, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.