APA Edition Citation

Birkhoff, G. D., & Beatley, R. (1959). Basic geometry (3rd ed.).

Chicago Edition Citation

Birkhoff, George David, and Ralph Beatley. Basic Geometry. 3rd ed. 1959.

MLA Edition Citation

Birkhoff, George David, and Ralph Beatley. Basic Geometry. 3rd ed. 1959.

Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.