APA (7th ed.) Citation

Gwartney, J. D., Stroup, R., Sobel, R. S., & Macpherson, D. A. (2015). Economics: Private and public choice (15th edition.). Cengage Learning.

Chicago Style (17th ed.) Citation

Gwartney, James D., Richard Stroup, Russell S. Sobel, and David A. Macpherson. Economics: Private and Public Choice. 15th edition. Stamford, CT, USA: Cengage Learning, 2015.

MLA (9th ed.) Citation

Gwartney, James D., et al. Economics: Private and Public Choice. 15th edition. Cengage Learning, 2015.