Case, K. E., Fair, R. C., & Oster, S. E. (2018). Principles of Economics (12th ed.). Pearson education India Pvt. Ltd.
Chicago-čujuhus (17. p.)Case, Karl E., Ray C. Fair, juo Sharon E. Oster. Principles of Economics. 12th ed. New Delhi: Pearson education India Pvt. Ltd, 2018.
MLA-čujuhus (9. p.)Case, Karl E., et al. Principles of Economics. 12th ed. Pearson education India Pvt. Ltd, 2018.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.