@book{30827,
	author = {Kennedy, Leonard M. and Tipps, Steven.},
	title = {Guiding children's learning of mathematics.},
	publisher = {Thomson/Wadsworth,},
	year = {c2004.},
	address = {Belmont, CA :},
	edition = {10th ed. /},
	url = {http://www.loc.gov/catdir/enhancements/fy1514/2002117125-b.html}
}