APA (7th ed.) Zitazioa

Graham. Spirituals and the Birth of a Black Entertainment Industry. University of Illinois Press.

Chicago Style (17th ed.) Zitazioa

Graham. Spirituals and the Birth of a Black Entertainment Industry. University of Illinois Press.

MLA (9th ed.) Zitazioa

Graham. Spirituals and the Birth of a Black Entertainment Industry. University of Illinois Press.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.