APA (7th ed.) Citation

Birkhoff, G. D., & Beatley, R. (1959). Basic geometry: Manual for teachers. Chelsea.

Chicago Style (17th ed.) Citation

Birkhoff, George David, and Ralph Beatley. Basic Geometry: Manual for Teachers. New York: Chelsea, 1959.

MLA (8th ed.) Citation

Birkhoff, George David, and Ralph Beatley. Basic Geometry: Manual for Teachers. Chelsea, 1959.

Warning: These citations may not always be 100% accurate.