@book{116923,
	author = {Coburn, John W.},
	title = {College algebra /},
	publisher = {McGraw-Hill Higher Education,},
	year = {c2007.},
	address = {Boston :},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/enhancements/fy0665/2005054414-t.html}
}