@book{90290,
	author = {Candelas Campos, J. Jesús.},
	title = {Uso agrícola de lodos residuales :},
	publisher = {El autor,},
	year = {2005.},
	address = {Chapingo, Méx. :},
	url = {http://10.13.5.2/tesis/101820.pdf}
}