APA (7th ed.) Citation

Billstein, R., Libeskind, S., Lott, J., Levy, L. L., & Ritz, E. (1993). A problem solving approach to mathematics for elementary school teachers (5th ed.). Addison-Wesley.

Chicago Style (17th ed.) Citation

Billstein, Rick, Shlomo Libeskind, Jhonny Lott, Louis L. Levy, and Edward Ritz. A Problem Solving Approach to Mathematics for Elementary School Teachers. 5th ed. Reading, MA: Addison-Wesley, 1993.

MLA (9th ed.) Citation

Billstein, Rick, et al. A Problem Solving Approach to Mathematics for Elementary School Teachers. 5th ed. Addison-Wesley, 1993.