Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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