@book{231,
	author = {Anton, Howard.},
	title = {Elementary linear algebra /},
	publisher = {John Wiley,},
	year = {c1994.},
	address = {New York :},
	edition = {7th ed.},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/toc/onix04/93028546.html}
}