@book{14031,
	author = {Tanton, James Stuart},
	title = {Encyclopedia of mathematics /},
	publisher = {Facts on File,},
	year = {c2005},
	series = {Facts on File science library},
	address = {New York :},
	url = {http://www.loc.gov/catdir/toc/ecip0420/2004016785.html}
}