Kennedy, L. M., & Tipps, S. (2000). Guiding children's learning of mathematics (9th ed.). Wadsworth.
Chicago (17e ed.) BronvermeldingKennedy, Leonard M., en Steve Tipps. Guiding Children's Learning of Mathematics. 9th ed. Australia: Wadsworth, 2000.
MLA (9e ed.) BronvermeldingKennedy, Leonard M., en Steve Tipps. Guiding Children's Learning of Mathematics. 9th ed. Wadsworth, 2000.
Let op: Deze citaties zijn niet altijd 100% accuraat.