Cita APA (7th ed.)
Clason, G. S. (1955). The richest man in Babylon. Hawthorn.
Cita Chicago (17th ed.)
Clason, George S. The Richest Man in Babylon. New York: Hawthorn, 1955.
Cita MLA (9th ed.)
Clason, George S. The Richest Man in Babylon. Hawthorn, 1955.
Atenció: Aquestes cites poden no estar 100% correctes.