National Council of Teachers of Mathematics, Columbia University. Teachers College. Dept. of Mathematical Education, & Rosskopf, M. F. (1971). Piagetian cognitive-development research and mathematical education. National Council of Teachers of Mathematics.
Chicago-Zitierstil (17. Ausg.)National Council of Teachers of Mathematics, Columbia University. Teachers College. Dept. of Mathematical Education, und Myron Frederick Rosskopf. Piagetian Cognitive-development Research and Mathematical Education. [Washington]: National Council of Teachers of Mathematics, 1971.
MLA-Zitierstil (9. Ausg.)National Council of Teachers of Mathematics, et al. Piagetian Cognitive-development Research and Mathematical Education. National Council of Teachers of Mathematics, 1971.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.