Kennedy, Leonard M. Guiding children's learning of mathematics / Leonard M. Kennedy, Steve Tipps, Art Johnson. - 10th ed. - London : Thomson Learning, 2004. - xxii, 695 p. ISBN: 0534608760L : GBP 37.99 Subjects--Topical Terms: Mathematics, Elementary--Study and teaching. LC Class. No.: QA135.5 / .K46 2004