Cita APA

National Council of Teachers of Mathematics, Fey, J. T., & Hirsch, C. R. (1992). Calculators in mathematics education. NCTM.

Citación estilo Chicago

National Council of Teachers of Mathematics, James Taylor Fey, and Christian R. Hirsch. Calculators in Mathematics Education. Reston, VA: NCTM, 1992.

Cita MLA

National Council of Teachers of Mathematics, et al. Calculators in Mathematics Education. NCTM, 1992.