APA aipamena

Authors. (2002). Economics: Principles and Practices. U.S.A: McGraw-Hill.

Chicago Style aipamena

Authors. Economics: Principles and Practices. U.S.A: McGraw-Hill, 2002.

MLA aipamena

Authors. Economics: Principles and Practices. U.S.A: McGraw-Hill, 2002.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.