@book{39889,
	author = {E.U.A. Department of Health, Education and Welfare},
	title = {Pesticide analytical manual},
	publisher = {Goverment Printing Office,},
	year = {1968},
	address = {Washington :},
	edition = {Rev. ed.},
	note = {La biblioteca tiene : v.1 Methods which detect multiple residues}
}