APA (7th ed.) Citation

Ekelund, R. B., & Tollison, R. D. (1994). Economics (4th ed.). Harper Collins.

Chicago Style (17th ed.) Citation

Ekelund, Robert B., and Robert D. Tollison. Economics. 4th ed. New York, N.Y: Harper Collins, 1994.

MLA (9th ed.) Citation

Ekelund, Robert B., and Robert D. Tollison. Economics. 4th ed. Harper Collins, 1994.