APA (7th ed.) Zitazioa

Butler, O. E. (1984). Clay's ark. St. Marin's Press.

Chicago Style (17th ed.) Zitazioa

Butler, Octavia E. Clay's Ark. New York: St. Marin's Press, 1984.

MLA (9th ed.) Zitazioa

Butler, Octavia E. Clay's Ark. St. Marin's Press, 1984.