@book{13120,
	author = {Crawford, Martin.},
	title = {Air pollution control theory /},
	publisher = {McGraw-Hill Inc.,US,},
	year = {1976.},
	address = {[S.l.] :},
	url = {http://www.amazon.com/exec/obidos/ASIN/0070134901/chopaconline-20}
}