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.
Chicago-viite (17. p.)Haylock, Derek, ja 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.
MLA-viite (8. p.)Haylock, Derek, ja 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.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.