APA (7th ed.) Zitazioa

Pettengill. Taking It to the Bridge. University of Michigan Press.

Chicago Style (17th ed.) Zitazioa

Pettengill. Taking It to the Bridge. University of Michigan Press.

MLA (9th ed.) Zitazioa

Pettengill. Taking It to the Bridge. University of Michigan Press.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.