APA (7th ed.) Citation

Ley, W. (1958). Rockets, missiles, and space travel (Revised and enl. ed.). Viking Pr.

Chicago Style (17th ed.) Citation

Ley, Willy. Rockets, Missiles, and Space Travel. Revised and enl. ed. New York: Viking Pr, 1958.

MLA (9th ed.) Citation

Ley, Willy. Rockets, Missiles, and Space Travel. Revised and enl. ed. Viking Pr, 1958.