@book{347549,
	author = {Hanna, Mark. and Newman, W. Rocky.},
	title = {Operations management :},
	publisher = {Prentice Hall,},
	year = {2001.},
	address = {[S.l.] :},
	url = {http://www.amazon.com/exec/obidos/ASIN/013258526X/chopaconline-20}
}