Cita APA (7th ed.)

Case, K. E., & Fair, R. C. (2007). Principles of economics (8th ed.). Prentice Hall.

Cita Chicago (17th ed.)

Case, Karl E., i Ray C. Fair. Principles of Economics. 8th ed. Upper Saddle River, N.J.: Prentice Hall, 2007.

Cita MLA (9th ed.)

Case, Karl E., i Ray C. Fair. Principles of Economics. 8th ed. Prentice Hall, 2007.