APA aipamena

McEachern, W. A. (1988). Economics: A contemporary introduction. South-Western.

Chicago Style aipamena

McEachern, William A. Economics: A Contemporary Introduction. South-Western, 1988.

MLA aipamena

McEachern, William A. Economics: A Contemporary Introduction. South-Western, 1988.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.