@book{88220,
	author = {Pérez Victoriano, Agustín. and Valdivia Cervantes, Maurilio.},
	title = {Rentabilidad financiera del maíz cacahuacintle del valle de Toluca},
	publisher = {El autor,},
	year = {2004.},
	address = {Chapingo, Méx. :},
	url = {http://10.13.5.2/tesis/99743.pdf}
}