Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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