APA

Grouws D. A., National Council of Teachers of Mathematics (Virginia), . (1992). Handbook of research on mathematics teaching and learning. New York: Macmillan.

Chicago

Grouws Douglas A, National Council of Teachers of Mathematics (Virginia), . 1992. Handbook of research on mathematics teaching and learning. New York: Macmillan.

Harvard

Grouws D. A., National Council of Teachers of Mathematics (Virginia), . (1992). Handbook of research on mathematics teaching and learning. New York: Macmillan.

MLA

Grouws Douglas A, National Council of Teachers of Mathematics (Virginia), . Handbook of research on mathematics teaching and learning. New York: Macmillan. 1992.