APA (7th ed.) Citation

Braun, W. v., & Ordway, F. I. (1967). Space travel. Nelson.

Chicago Style (17th ed.) Citation

Braun, Wernher von, and Frederick I. Ordway. Space Travel. London [u.a.]: Nelson, 1967.

MLA (9th ed.) Citation

Braun, Wernher von, and Frederick I. Ordway. Space Travel. Nelson, 1967.