APA (7th ed.) Zitazioa

Lipsey. Hammarskjöld. University of Michigan Press.

Chicago Style (17th ed.) Zitazioa

Lipsey. Hammarskjöld. University of Michigan Press.

MLA (9th ed.) Zitazioa

Lipsey. Hammarskjöld. University of Michigan Press.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.