Grouws, D. A., & Mathematics, N. C. o. T. o. (1992). Handbook of research on mathematics teaching and learning: A project of the National Council of Teachers of Mathematics. New York : Simon & Schuster Macmillan.
Chicago-Zitierstil (17. Ausg.)Grouws, Douglas A., und National Council of Teachers of Mathematics. Handbook of Research on Mathematics Teaching and Learning: A Project of the National Council of Teachers of Mathematics. New York : Simon & Schuster Macmillan, 1992.
MLA-Zitierstil (9. Ausg.)Grouws, Douglas A., und National Council of Teachers of Mathematics. Handbook of Research on Mathematics Teaching and Learning: A Project of the National Council of Teachers of Mathematics. New York : Simon & Schuster Macmillan, 1992.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.