Cita APA (7a ed.)

Case, K. E., & Fair, R. C. (1996). Principles of economics (4th ed.). Prentice Hall.

Cita Chicago Style (17a ed.)

Case, Karl E., y Ray C. Fair. Principles of Economics. 4th ed. Upper Saddle River [N.J.]: Prentice Hall, 1996.

Cita MLA (9a ed.)

Case, Karl E., y Ray C. Fair. Principles of Economics. 4th ed. Prentice Hall, 1996.