APA (7th ed.) Citation

Apostol, T. M., & Mnatsakanian, M. A. (2012). New horizons in geometry. Mathematical Association of America.

Chicago Style (17th ed.) Citation

Apostol, Tom M., and Mamikon A. Mnatsakanian. New Horizons in Geometry. Washington, D.C.: Mathematical Association of America, 2012.

MLA (8th ed.) Citation

Apostol, Tom M., and Mamikon A. Mnatsakanian. New Horizons in Geometry. Mathematical Association of America, 2012.