Hilbert, D., & Cohn-Vossen, S. (1956). Geometry and the imagination. Chelsea Publishing Company.
Chicago Style (17th ed.) CitationHilbert, D., and S. Cohn-Vossen. Geometry and the Imagination. New York: Chelsea Publishing Company, 1956.
MLA (9th ed.) CitationHilbert, D., and S. Cohn-Vossen. Geometry and the Imagination. Chelsea Publishing Company, 1956.