@book{661,
	author = {Olson, David Louis.},
	title = {Managerial issues of enterprise resource planning systems /},
	publisher = {McGraw-Hill/Irwin,},
	year = {c2004.},
	address = {Boston :},
	url = {http://www.loc.gov/catdir/toc/mh031/2003054079.html}
}