Case, K. E. F. (2022). Principles of Economics (12th.). Noida.
Chicago Style aipamenaCase, Karl E; Fair. Principles of Economics. 12th. Pearson India Education Services: Noida, 2022.
MLA aipamenaCase, Karl E; Fair. Principles of Economics. 12th. Noida, 2022.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.