APA (7th ed.) Citation

Rhoad, R., Milauskas, G., & Whipple, R. (1991). Geometry for Enjoyment and Challenge (New ed.). McDougal, Littell & Company.

Chicago Style (17th ed.) Citation

Rhoad, Richard, George Milauskas, and Robert Whipple. Geometry for Enjoyment and Challenge. New ed. New york: McDougal, Littell & Company, 1991.

MLA (9th ed.) Citation

Rhoad, Richard, et al. Geometry for Enjoyment and Challenge. New ed. McDougal, Littell & Company, 1991.