APA (7th ed.) Citation

Hart, W. W., Schult, V., & Swain, H. Plane geometry and supplements. D.C. heath and company.

Chicago Style (17th ed.) Citation

Hart, Walter W., Veryl Schult, and Henry Swain. Plane Geometry and Supplements. Boston: D.C. heath and company.

MLA (9th ed.) Citation

Hart, Walter W., et al. Plane Geometry and Supplements. D.C. heath and company.