(1990). Constructivist views on the teaching and learning of mathematics. National Council of Teachers of Math.
Chicago-Zitierstil (17. Ausg.)Constructivist Views on the Teaching and Learning of Mathematics. Reston, Va: National Council of Teachers of Math, 1990.
MLA-Zitierstil (9. Ausg.)Constructivist Views on the Teaching and Learning of Mathematics. National Council of Teachers of Math, 1990.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.