Cita APA (7a ed.)
Billstein, R., Libeskind, S., & Lott, J. W. (1993). A problem solving approach to mathematics (5th ed.). Addison- Wesley.
Cita Chicago Style (17a ed.)
Billstein, Rick, Shlomo Libeskind, y Johnny W. Lott. A Problem Solving Approach to Mathematics. 5th ed. Reading: Addison- Wesley, 1993.
Cita MLA (9a ed.)
Billstein, Rick, et al. A Problem Solving Approach to Mathematics. 5th ed. Addison- Wesley, 1993.
Precaución: Estas citas no son 100% exactas.