Birkhoff, G. D. 1., & Beatley, R. (1959). Basic geometry (3. edition --.). New York, New York: Chelsea.
Chicago Style CitationBirkhoff, George David 1884-1944, and Ralph Beatley. Basic Geometry. 3. edition --. New York, New York: Chelsea, 1959.
MLA CitationBirkhoff, George David 1884-1944, and Ralph Beatley. Basic Geometry. 3. edition --. New York, New York: Chelsea, 1959.
Warning: These citations may not always be 100% accurate.