APA (7th ed.) Citation

Case, K. E., Fair, R. C., & Oster, S. M. (2013). Principles of economics (10th Horizon edition.). Pearson Education Ltd.

Chicago Style (17th ed.) Citation

Case, Karl E., Ray C. Fair, and Sharon M. Oster. Principles of Economics. 10th Horizon edition. Boston: Pearson Education Ltd, 2013.

MLA (9th ed.) Citation

Case, Karl E., et al. Principles of Economics. 10th Horizon edition. Pearson Education Ltd, 2013.