APA (7th ed.) Citation

Clarke, A. C. (1953). Childhood's end. Harcourt, Brace and World.

Chicago Style (17th ed.) Citation

Clarke, Arthur Charles. Childhood's End. New York: Harcourt, Brace and World, 1953.

MLA (9th ed.) Citation

Clarke, Arthur Charles. Childhood's End. Harcourt, Brace and World, 1953.