APA (7th ed.) Citation

Ekelund, R. B., & Tollison, R. D. (1991). Macroeconomics (3rd ed.). Harper Collins.

Chicago Style (17th ed.) Citation

Ekelund, Robert B., and Robert D. Tollison. Macroeconomics. 3rd ed. New York, N.Y: Harper Collins, 1991.

MLA (9th ed.) Citation

Ekelund, Robert B., and Robert D. Tollison. Macroeconomics. 3rd ed. Harper Collins, 1991.