@book{991,
	author = {Anton, Howard. and Rorres, Chris.},
	title = {Elementary linear algebra :},
	publisher = {Wiley,},
	year = {c1994.},
	address = {New York :},
	edition = {7th ed.},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/toc/onix04/93047664.html}
}