Cita APA (7th ed.)
Haveman, R. H. (1966). The market system. John wieley & sons , Inc..
Cita Chicago (17th ed.)
Haveman, Robert H. The Market System. London: John wieley & sons , Inc., 1966.
Cita MLA (9th ed.)
Haveman, Robert H. The Market System. John wieley & sons , Inc., 1966.
Atenció: Aquestes cites poden no estar 100% correctes.