@book{227419,
	author = {Kaufmann, Jerome E. and Schwitters, Karen.},
	title = {College algebra.},
	publisher = {Thomson Brooks/Cole},
	year = {c2009.},
	address = {Belmont, CA},
	edition = {7th ed.},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/enhancements/fy1104/2007939902-b.html}
}