APA aipamena

Case, K. E. (1994). Principles of economics. New Jersey: Prentice Hall.

Chicago Style aipamena

Case, Karl E. Principles of Economics. New Jersey: Prentice Hall, 1994.

MLA aipamena

Case, Karl E. Principles of Economics. New Jersey: Prentice Hall, 1994.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.