Cita APA (7th ed.)
Ratner, S. (1993). The evolution of American economy (2nd ed.). Macmillan.
Cita Chicago (17th ed.)
Ratner, Sidney. The Evolution of American Economy. 2nd ed. New York: Macmillan, 1993.
Cita MLA (9th ed.)
Ratner, Sidney. The Evolution of American Economy. 2nd ed. Macmillan, 1993.
Atenció: Aquestes cites poden no estar 100% correctes.