APA (7th ed.) Zitazioa

Buccola. The Political Thought of Frederick Douglass. NYU Press.

Chicago Style (17th ed.) Zitazioa

Buccola. The Political Thought of Frederick Douglass. NYU Press.

MLA (9th ed.) Zitazioa

Buccola. The Political Thought of Frederick Douglass. NYU Press.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.