Kennedy, L. M. (1984). Guiding children's learning of mathematics (4th ed.). Wadsworth Pub.
Citazione stile Chigago Style (17a edizione)Kennedy, Leonard M. Guiding Children's Learning of Mathematics. 4th ed. Belmont, Calif: Wadsworth Pub, 1984.
Citatione MLA (9a ed.)Kennedy, Leonard M. Guiding Children's Learning of Mathematics. 4th ed. Wadsworth Pub, 1984.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.