National Council of Teachers of Mathematics. (1963). An analysis of new mathematics programs.
Dyfyniad Arddull ChicagoNational Council of Teachers of Mathematics. An Analysis of New Mathematics Programs. Washington : [NCTM], 1963.
Dyfyniad MLANational Council of Teachers of Mathematics. An Analysis of New Mathematics Programs. 1963.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.