@book{95978,
	author = {Garduño Velázquez, José.},
	title = {Uso de coberturas orgánicas para el control de malezas en frijol (Phaseolus vulgaris L.)},
	publisher = {El autor,},
	year = {2008},
	address = {Chapingo, Méx. :},
	url = {http://10.13.5.2/tesis/107607.pdf}
}