Não informado. (1970). Journal for Research in Mathematics Education. National Council of Teachers of Mathematics.
Style de citation Chicago (17e éd.)Não informado. Journal for Research in Mathematics Education. Reston, Va: National Council of Teachers of Mathematics, 1970.
Style de citation MLA (8e éd.)Não informado. Journal for Research in Mathematics Education. National Council of Teachers of Mathematics, 1970.
Attention : ces citations peuvent ne pas être correctes à 100%.