Cita APA (7a ed.)

Lester, F. K., Jr. (2003). Teaching mathematics through problem solving: Prekendergarten-grade 6. NCTM.

Cita Chicago Style (17a ed.)

Lester, Frank K., Jr. Teaching Mathematics Through Problem Solving: Prekendergarten-grade 6. Reston, VA: NCTM, 2003.

Cita MLA (9a ed.)

Lester, Frank K., Jr. Teaching Mathematics Through Problem Solving: Prekendergarten-grade 6. NCTM, 2003.