@book{1611,
	author = {Zappe, R.W.},
	title = {Valve selection handbook /},
	publisher = {Jaico Publishing House,},
	year = {2005.},
	address = {[S.l.] :},
	url = {http://www.amazon.com/exec/obidos/ASIN/8172244177/chopaconline-20}
}