Hansen, A. (2011). Children's errors in mathematics: Understanding common misconceptions in primary schools (2nd ed.). Learning Matters.
Chicago-Zitierstil (17. Ausg.)Hansen, Alison. Children's Errors in Mathematics: Understanding Common Misconceptions in Primary Schools. 2nd ed. Exeter, U.K: Learning Matters, 2011.
MLA-Zitierstil (9. Ausg.)Hansen, Alison. Children's Errors in Mathematics: Understanding Common Misconceptions in Primary Schools. 2nd ed. Learning Matters, 2011.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.