@book{5681,
	author = {Gilbert, Linda, and Gilbert, Jimmie,},
	title = {Elements of modern algebra /},
	publisher = {Cengage Brooks Cole,},
	year = {c2009.},
	address = {Belmont, CA :},
	edition = {7th ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy1302/2008928823-b.html}
}