National Council of Teachers of Mathematics. (1963). An analysis of new mathematics programs.
Cita Chicago (17th ed.)National Council of Teachers of Mathematics. An Analysis of New Mathematics Programs. Washington : [NCTM], 1963.
Cita MLA (9th ed.)National Council of Teachers of Mathematics. An Analysis of New Mathematics Programs. 1963.
Atenció: Aquestes cites poden no estar 100% correctes.