@book{87250,
	author = {Valencia García, Alejandro.},
	title = {Control químico postemergente de malezas en el cultivo de agave (Agave tequilana Weber var. Azul) en tepatitlán, Jalisco, México},
	publisher = {El autor,},
	year = {2003.},
	address = {Chapingo, Méx. :},
	url = {http://10.13.5.2/tesis/98767.pdf}
}