Dyfyniad APA

Clark, C. (1951). The conditions of economic progress (2d ed. completely rewritten.). Macmillan.

Dyfyniad Arddull Chicago

Clark, Colin. The Conditions of Economic Progress. 2d ed. completely rewritten. London: Macmillan, 1951.

Dyfyniad MLA

Clark, Colin. The Conditions of Economic Progress. 2d ed. completely rewritten. Macmillan, 1951.

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