Cita APA

Clarke, A. C. 1., & Clarke, A. C. 1. (1953). Childhood's end. New York, New York: Ballantine.

Citación estilo Chicago

Clarke, Arthur Charles 1917-2008, y Arthur Charles 1917-2008 Clarke. Childhood's End. New York, New York: Ballantine, 1953.

Cita MLA

Clarke, Arthur Charles 1917-2008, y Arthur Charles 1917-2008 Clarke. Childhood's End. New York, New York: Ballantine, 1953.