APA (7th ed.) Citation

Bartoo, G. C., & Bartoo, G. (1949). An Introduction to college geometry. The Macmillan.

Chicago Style (17th ed.) Citation

Bartoo, G. C., and G.C Bartoo. An Introduction to College Geometry. New York: The Macmillan, 1949.

MLA (9th ed.) Citation

Bartoo, G. C., and G.C Bartoo. An Introduction to College Geometry. The Macmillan, 1949.