Morrison, T. (1987). Sula. Penguin Books.
Lua i Stíl Chicago (17ú heag.)Morrison, Toni. Sula. New York: Penguin Books, 1987.
Lua MLA (9ú heag.)Morrison, Toni. Sula. Penguin Books, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.