APA (7th ed.) Zitazioa

Harvey, J. (1991). Intermediate economics (5th ed.). MacMillan.

Chicago Style (17th ed.) Zitazioa

Harvey, Jack. Intermediate Economics. 5th ed. London: MacMillan, 1991.

MLA (9th ed.) Zitazioa

Harvey, Jack. Intermediate Economics. 5th ed. MacMillan, 1991.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.