Cita APA (7th ed.)
Summers, R. E. (1942). Wages and prices. Wilson.
Cita Chicago (17th ed.)
Summers, Robert Edward. Wages and Prices. New York: Wilson, 1942.
Cita MLA (9th ed.)
Summers, Robert Edward. Wages and Prices. Wilson, 1942.
Atenció: Aquestes cites poden no estar 100% correctes.