@book{10814,
	author = {Ryan, William.},
	title = {Water treatment and purification /},
	publisher = {McGraw Hill,},
	year = {1937.},
	address = {[S.l.] :},
	edition = {1St Edition.},
	url = {http://www.amazon.com/exec/obidos/ASIN/B000RAY770/chopaconline-20}
}