@book{1763,
	author = {Schoeff, Larry E. and Williams, Robert H.},
	title = {Principles of laboratory instruments /},
	publisher = {Mosby-Year Book,},
	year = {1993.},
	address = {[S.l.] :},
	url = {http://www.amazon.com/exec/obidos/ASIN/0801674891/chopaconline-20}
}