APA (7th ed.) Citation

Ley, W., & Bonestell, C. (1959). The conquest of space. Viking press.

Chicago Style (17th ed.) Citation

Ley, Willy, and Chesley Bonestell. The Conquest of Space. New York: Viking press, 1959.

MLA (8th ed.) Citation

Ley, Willy, and Chesley Bonestell. The Conquest of Space. Viking press, 1959.