@book{43776,
	author = {Schmandt-Besserat, Denise. and Hays, Michael,},
	title = {The history of counting /},
	publisher = {Morrow Junior Books,},
	year = {1997.},
	address = {New York :},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/description/hc041/96035316.html}
}