APA (7th ed.) Citation

Case, K. E., & Fair, R. C. (1989). Principles of economics. Prentice Hall.

Chicago Style (17th ed.) Citation

Case, Karl E., and Ray C. Fair. Principles of Economics. Englewood Cliffs, New Jersey: Prentice Hall, 1989.

MLA (9th ed.) Citation

Case, Karl E., and Ray C. Fair. Principles of Economics. Prentice Hall, 1989.