@book{1249,
	author = {PERRIN, D D. and Armarego, W.L.F.},
	title = {Purification of laboratory chemicals /},
	publisher = {Butterworth-Heinemann,},
	year = {1997.},
	address = {[S.l.] :},
	edition = {4th ed.},
	url = {http://www.amazon.com/exec/obidos/ASIN/0750637617/chopaconline-20}
}