APA (7th ed.) Citation

Sobel, R. S., Gwartney, J. D., Stroup, R., & Macpherson, D. A. (2013). Understanding economics (Fourteenth edition.). South-Western, Cengage Learning.

Chicago Style (17th ed.) Citation

Sobel, Russell S., James D. Gwartney, Richard Stroup, and David A. Macpherson. Understanding Economics. Fourteenth edition. Australia: South-Western, Cengage Learning, 2013.

MLA (9th ed.) Citation

Sobel, Russell S., et al. Understanding Economics. Fourteenth edition. South-Western, Cengage Learning, 2013.

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