APA (7th ed.) Citation

Watson, E. E., & Watson, M. M. (1935). Elements of projective geometry. Heath.

Chicago Style (17th ed.) Citation

Watson, Emery Ernest, and Margaret Marie Watson. Elements of Projective Geometry. Boston [u.a.]: Heath, 1935.

MLA (9th ed.) Citation

Watson, Emery Ernest, and Margaret Marie Watson. Elements of Projective Geometry. Heath, 1935.

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