Dyfyniad APA

Ekelund, R. B. (1984). A history of economic theory and method. London: McGraw-Hill International Book Company.

Dyfyniad Arddull Chicago

Ekelund, Robert B. A History of Economic Theory and Method. London: McGraw-Hill International Book Company, 1984.

Dyfyniad MLA

Ekelund, Robert B. A History of Economic Theory and Method. London: McGraw-Hill International Book Company, 1984.

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