APA (7th ed.) Citation

Mankiw, N. G., Quah, E., & Wilson, P. H. (2008). Principles of economics. Cengage Learning.

Chicago Style (17th ed.) Citation

Mankiw, N. Gregory, Euston Quah, and Peter H. Wilson. Principles of Economics. Singapore: Cengage Learning, 2008.

MLA (9th ed.) Citation

Mankiw, N. Gregory, et al. Principles of Economics. Cengage Learning, 2008.