APA (7th ed.) Citation

Clemens, C. H., & Clemens, M. A. (1991). Geometry for the Classroom. Springer New York.

Chicago Style (17th ed.) Citation

Clemens, C. Herbert, and Michael A. Clemens. Geometry for the Classroom. New York, NY: Springer New York, 1991.

MLA (9th ed.) Citation

Clemens, C. Herbert, and Michael A. Clemens. Geometry for the Classroom. Springer New York, 1991.