@book{265796,
	author = {Confer, Chris.},
	title = {Teaching number sense, grade 1 /},
	publisher = {Math Solutions Publications,},
	year = {c2005.},
	address = {Sausalito, CA :},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/toc/ecip0511/2005010701.html}
}