@book{2523,
	author = {Hougen, Watson.},
	title = {Chemical process principles :},
	publisher = {CBS Publishers & Distributors,},
	year = {2004.},
	address = {[S.l.] :},
	url = {http://www.amazon.com/exec/obidos/ASIN/8123911602/chopaconline-20}
}