@book{51038,
	author = {Sabri, Ehap H. and Gupta, Arun P.},
	title = {Purchase order management best practices :},
	publisher = {J. Ross Pub.c,},
	year = {c2007},
	address = {Ft. Lauderdale, FL :},
	url = {http://www.loc.gov/catdir/toc/ecip0619/2006025682.html}
}