Dyfyniad APA
Ratner, S. (1993). The evolution of American economy (2nd ed.). Macmillan.
Dyfyniad Arddull Chicago
Ratner, Sidney. The Evolution of American Economy. 2nd ed. New York: Macmillan, 1993.
Dyfyniad MLA
Ratner, Sidney. The Evolution of American Economy. 2nd ed. Macmillan, 1993.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.