APA (7th ed.) Citation

Gwartney, J. D., Stroup, R., & Sobel, R. S. (2000). Economics: Private and public choice (9th ed.). Dryden Press.

Chicago Style (17th ed.) Citation

Gwartney, James D., Richard Stroup, and Russell S. Sobel. Economics: Private and Public Choice. 9th ed. Fort Worth, TX: Dryden Press, 2000.

MLA (9th ed.) Citation

Gwartney, James D., et al. Economics: Private and Public Choice. 9th ed. Dryden Press, 2000.