Galván Anaya, F. (1967). National council of teachers of mathematics. Trillas.
Chicagoスタイル(17版)引用形式Galván Anaya, Federico. National Council of Teachers of Mathematics. Trillas, 1967.
MLA(9版)引用形式Galván Anaya, Federico. National Council of Teachers of Mathematics. Trillas, 1967.
警告: この引用は必ずしも正確ではありません.