APA (7th ed.) Citation

Ekelund, R. B., & Tollison, R. D. (1991). Economics. HarperCollins Publishers.

Chicago Style (17th ed.) Citation

Ekelund, Robert B., and Robert D. Tollison. Economics. New York, NY: HarperCollins Publishers, 1991.

MLA (9th ed.) Citation

Ekelund, Robert B., and Robert D. Tollison. Economics. HarperCollins Publishers, 1991.

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