APA (7th ed.) Citation

Ley, W. (1963). Harnessing space. Macmillan.

Chicago Style (17th ed.) Citation

Ley, Willy. Harnessing Space. New York: Macmillan, 1963.

MLA (9th ed.) Citation

Ley, Willy. Harnessing Space. Macmillan, 1963.

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