National Council of Teachers of Mathematics. (2000). Principles and standards for school mathematics (1st edition.). Reston, Virgina: National Council of Teachers of Mathematics.
Citación estilo ChicagoNational Council of Teachers of Mathematics. Principles and Standards for School Mathematics. 1st edition. Reston, Virgina: National Council of Teachers of Mathematics, 2000.
Cita MLANational Council of Teachers of Mathematics. Principles and Standards for School Mathematics. 1st edition. Reston, Virgina: National Council of Teachers of Mathematics, 2000.
Precaución: Estas citas no son 100% exactas.