APA (7th ed.) Citation

Gubitz, M. B. (1963). Rocketship X-15: A bold new step in aviation (Third printing.). Julian Messner, Inc.

Chicago Style (17th ed.) Citation

Gubitz, Myron B. Rocketship X-15: A Bold New Step in Aviation. Third printing. New York: Julian Messner, Inc, 1963.

MLA (9th ed.) Citation

Gubitz, Myron B. Rocketship X-15: A Bold New Step in Aviation. Third printing. Julian Messner, Inc, 1963.