Cita APA (7a ed.)

Billstein, R., Lott, J., & Libeskind, S. (2014). A Problem solving approach to mathematics for elementary school teachers (11th ed.). Pearson.

Cita Chicago Style (17a ed.)

Billstein, R., J. Lott, y S. Libeskind. A Problem Solving Approach to Mathematics for Elementary School Teachers. 11th ed. Harlow, England: Pearson, 2014.

Cita MLA (9a ed.)

Billstein, R., et al. A Problem Solving Approach to Mathematics for Elementary School Teachers. 11th ed. Pearson, 2014.