Cita APA (7th ed.)

Haylock, D., & Cockburn, A. (2003). Understanding mathematics in the lower primary years: A guide for teachers of children 3-8 (Second edition.). Paul Chapman Pub. ; Sage Publications.

Cita Chicago (17th ed.)

Haylock, Derek, i Anne Cockburn. Understanding Mathematics in the Lower Primary Years: A Guide for Teachers of Children 3-8. Second edition. London : Thousand Oaks, Calif.: Paul Chapman Pub. ; Sage Publications, 2003.

Cita MLA (8th ed.)

Haylock, Derek, i Anne Cockburn. Understanding Mathematics in the Lower Primary Years: A Guide for Teachers of Children 3-8. Second edition. Paul Chapman Pub. ; Sage Publications, 2003.