Dyfyniad APA

Kohler, H. (1972). What economics is all about. The dryden press.

Dyfyniad Arddull Chicago

Kohler, Heinz. What Economics Is All About. Illinois: The dryden press, 1972.

Dyfyniad MLA

Kohler, Heinz. What Economics Is All About. The dryden press, 1972.

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