Não informado. (1994). Mathematics Teaching in the Middle School. National Council of Teachers of Mathematics.
Style de citation Chicago (17e éd.)Não informado. Mathematics Teaching in the Middle School. Reston, Va: National Council of Teachers of Mathematics, 1994.
Style de citation MLA (8e éd.)Não informado. Mathematics Teaching in the Middle School. National Council of Teachers of Mathematics, 1994.
Attention : ces citations peuvent ne pas être correctes à 100%.