Cita APA

Reys, R., Lindquist, M. M., Lambdin, D. V., & Smith, N. L. Helping children learn mathematics (10a ed.).

Citación estilo Chicago

Reys, Robert, Mary M. Lindquist, Diana V. Lambdin, and Nancy L. Smith. Helping Children Learn Mathematics. 10a ed.

Cita MLA

Reys, Robert, et al. Helping Children Learn Mathematics. 10a ed.