Cita APA (7a ed.)

Clarke, A. C. (1980). The Fountains of Paradise. Ballantine.

Cita Chicago Style (17a ed.)

Clarke, Arthur C. The Fountains of Paradise. New York: Ballantine, 1980.

Cita MLA (9a ed.)

Clarke, Arthur C. The Fountains of Paradise. Ballantine, 1980.