APA (7th ed.) Citation

Ekelund. (1997). A history of economic theory and methods (4th ed.). McGraw-Hill Book Co.

Chicago Style (17th ed.) Citation

Ekelund. A History of Economic Theory and Methods. 4th ed. Singapore: McGraw-Hill Book Co, 1997.

MLA (8th ed.) Citation

Ekelund. A History of Economic Theory and Methods. 4th ed. McGraw-Hill Book Co, 1997.