Cita APA (7th ed.)

Billstein, R., Libeskind, S., & Lott, J. W. (1993). A problem solving approach to mathematics (5th ed.). Addison-Wesley Pub. Co.

Cita Chicago (17th ed.)

Billstein, Rick, Shlomo Libeskind, i Johnny W. Lott. A Problem Solving Approach to Mathematics. 5th ed. Reading, Mass: Addison-Wesley Pub. Co, 1993.

Cita MLA (9th ed.)

Billstein, Rick, et al. A Problem Solving Approach to Mathematics. 5th ed. Addison-Wesley Pub. Co, 1993.