APA (7th ed.) Citation

Clarke, A. C. (1968). The promise of space. Pyramid books.

Chicago Style (17th ed.) Citation

Clarke, A. C. The Promise of Space. New York: Pyramid books, 1968.

MLA (8th ed.) Citation

Clarke, A. C. The Promise of Space. Pyramid books, 1968.

Warning: These citations may not always be 100% accurate.