APA (7th ed.) Citation
Hilbert, D., & Cohn-Vossen, S. (1952). Geometry and the imagination. Chelsea publ..
Chicago Style (17th ed.) Citation
Hilbert, David, and Stephan Cohn-Vossen. Geometry and the Imagination. New York: Chelsea publ., 1952.
MLA (9th ed.) Citation
Hilbert, David, and Stephan Cohn-Vossen. Geometry and the Imagination. Chelsea publ., 1952.
Warning: These citations may not always be 100% accurate.