APA (7th ed.) Citation

Case, K. E., Fair, R. C. a., & Oster, S. M. (2017). Principles of economics: Ray C. Fair (Twelfth edition.). Pearson.

Chicago Style (17th ed.) Citation

Case, Karl E., Ray C. author Fair, and Sharon M. Oster. Principles of Economics: Ray C. Fair. Twelfth edition. Boston: Pearson, 2017.

MLA (9th ed.) Citation

Case, Karl E., et al. Principles of Economics: Ray C. Fair. Twelfth edition. Pearson, 2017.