@book{33842,
	author = {Carrillo González, Rogelio. and Cajuste, Lenom J.},
	title = {Heavy metals in soils and alfalfa (Medicago sativa L.) irrigated with three sources of wastewater},
	note = {Sobretiro de : J. Environ. Sci. Health A 27(7):1771-1783, 1992}
}