Cita APA (7th ed.)
Levenson, A. M. (1964). Outline of price theory. Holt, Reinhart.
Cita Chicago (17th ed.)
Levenson, Albert M. Outline of Price Theory. New York: Holt, Reinhart, 1964.
Cita MLA (9th ed.)
Levenson, Albert M. Outline of Price Theory. Holt, Reinhart, 1964.
Atenció: Aquestes cites poden no estar 100% correctes.