APA (7th ed.) Citation

Kohler, H. (1972). What economics is all about. Dryden.

Chicago Style (17th ed.) Citation

Kohler, Heinz. What Economics Is All About. Hinsdale, Ill.: Dryden, 1972.

MLA (9th ed.) Citation

Kohler, Heinz. What Economics Is All About. Dryden, 1972.

Warning: These citations may not always be 100% accurate.