APA (7th ed.) Citation

Carpenter, D., Pepper, D. L., Meyers, R., & Loebner, M. (1950). Arithmetic 6. MacMillan.

Chicago Style (17th ed.) Citation

Carpenter, Dale, Dorothy Leavitt Pepper, Robert Meyers, and Medill Loebner. Arithmetic 6. New York: MacMillan, 1950.

MLA (9th ed.) Citation

Carpenter, Dale, et al. Arithmetic 6. MacMillan, 1950.