Copeland, R. W. (1984). How children learn mathematics: Teaching implications of Piaget's research (4th ed.). Macmillan.
Chicago-Zitierstil (17. Ausg.)Copeland, Richard W. How Children Learn Mathematics: Teaching Implications of Piaget's Research. 4th ed. New York: Macmillan, 1984.
MLA-Zitierstil (9. Ausg.)Copeland, Richard W. How Children Learn Mathematics: Teaching Implications of Piaget's Research. 4th ed. Macmillan, 1984.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.