Cita APA (7a ed.)

Clarke, A. C. (1994). The hammer of God. Bantam Books.

Cita Chicago Style (17a ed.)

Clarke, Arthur Charles. The Hammer of God. New York [etc.]: Bantam Books, 1994.

Cita MLA (9a ed.)

Clarke, Arthur Charles. The Hammer of God. Bantam Books, 1994.