Citazione Stile APA (7a Edizione)

Hansen, A., & Drews, D. (2005). Children's errors in mathematics: Understanding common misconceptions in primary schools. Learning Matters.

Citazione stile Chigago Style (17a edizione)

Hansen, Alison, e Doreen Drews. Children's Errors in Mathematics: Understanding Common Misconceptions in Primary Schools. Exeter: Learning Matters, 2005.

Citatione MLA (9a ed.)

Hansen, Alison, e Doreen Drews. Children's Errors in Mathematics: Understanding Common Misconceptions in Primary Schools. Learning Matters, 2005.