APA Citation

National Council of Teachers of Mathematics, & National Council of Teachers of Mathematics. (1967). El sistema de los enteros. México: Trillas.

Chicago Style Citation

National Council of Teachers of Mathematics, and National Council of Teachers of Mathematics. El Sistema De Los Enteros. México: Trillas, 1967.

MLA Citation

National Council of Teachers of Mathematics, and National Council of Teachers of Mathematics. El Sistema De Los Enteros. México: Trillas, 1967.

Warning: These citations may not always be 100% accurate.