APA引文

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

Chicago Edition Citation

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

MLA引文

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

警告：這些引文格式不一定是100％准確.