APA (7e ed.) Bronvermelding

Hansen, A. (2011). Children's errors in mathematics: Understanding common misconceptions in primary schools (2nd ed.). Learning Matters.

Chicago (17e ed.) Bronvermelding

Hansen, Alison. Children's Errors in Mathematics: Understanding Common Misconceptions in Primary Schools. 2nd ed. Exeter, U.K: Learning Matters, 2011.

MLA (9e ed.) Bronvermelding

Hansen, Alison. Children's Errors in Mathematics: Understanding Common Misconceptions in Primary Schools. 2nd ed. Learning Matters, 2011.