Cita APA (7th ed.)

KENNEDY, L. M., & TIPPS, S. (2003). Guiding children's learning of mathematics.-- ed.9. Wadsworth.

Cita Chicago (17th ed.)

KENNEDY, Leornard M., i Steve TIPPS. Guiding Children's Learning of Mathematics.-- Ed.9. Australia: Wadsworth, 2003.

Cita MLA (9th ed.)

KENNEDY, Leornard M., i Steve TIPPS. Guiding Children's Learning of Mathematics.-- Ed.9. Wadsworth, 2003.