APA Citation

Greenlaw, S. A., & Shapiro, D. (2018). Principles of economics (2nd edition.). Houston, Texas: OpenStax.

Chicago Style Citation

Greenlaw, Steven A., and David Shapiro. Principles of Economics. 2nd edition. Houston, Texas: OpenStax, 2018.

MLA Citation

Greenlaw, Steven A., and David Shapiro. Principles of Economics. 2nd edition. Houston, Texas: OpenStax, 2018.

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