APA (7th ed.) Citation

Sitomer, M., Sitomer, H., & Giusti, G. (1971). Circles. Crowell.

Chicago Style (17th ed.) Citation

Sitomer, Mindel, Harry Sitomer, and George Giusti. Circles. New York: Crowell, 1971.

MLA (9th ed.) Citation

Sitomer, Mindel, et al. Circles. Crowell, 1971.