APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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