@book{40371,
	author = {Heddens, James W., and Speer, William R.,},
	title = {Today's mathematics :},
	publisher = {John Wiley,},
	year = {2006.},
	address = {New York :},
	edition = {11th ed.},
	url = {http://www.loc.gov/catdir/toc/onix06/00036659.html}
}