@book{7784,
	author = {SAWYER, CLAIR N. and MCCARTY, PERRY L.},
	title = {QUIMICA PARA INGENIERIA AMBIENTAL/ },
	publisher = {MCGRAW-HILL},
	year = {\\\\},
	address = {BOGOTA ; MEXICO: },
	edition = {[4]},
	note = {INCLUYE BIBLIOGRAFIAS E INDICE.}
}