Dyfyniad APA

Roll, E. (1953). A History of economic thought (3rd.ed.). Prentice-Hall.

Dyfyniad Arddull Chicago

Roll, Eric. A History of Economic Thought. 3rd.ed. New Jersey: Prentice-Hall, 1953.

Dyfyniad MLA

Roll, Eric. A History of Economic Thought. 3rd.ed. Prentice-Hall, 1953.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.