Case, K. E., & Fair, R. C. (2007). Principles of economics (8th ed.). Pearson Education.
Citazione stile Chigago Style (17a edizione)Case, Karl E., e Ray C. Fair. Principles of Economics. 8th ed. New Delhi: Pearson Education, 2007.
Citatione MLA (9a ed.)Case, Karl E., e Ray C. Fair. Principles of Economics. 8th ed. Pearson Education, 2007.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.