Cita APA (7th ed.)

Case, K. E., & Fair, R. C. (2011). Principles of economics (10th ed.). Pearson Education South Asia Pte. Ltd. (Phil. Representative Office).

Cita Chicago (17th ed.)

Case, Karl E., i Ray C. Fair. Principles of Economics. 10th ed. Singapore: Pearson Education South Asia Pte. Ltd. (Phil. Representative Office), 2011.

Cita MLA (9th ed.)

Case, Karl E., i Ray C. Fair. Principles of Economics. 10th ed. Pearson Education South Asia Pte. Ltd. (Phil. Representative Office), 2011.