@book{92103,
	author = {Vega Valdivia, Dixia Dania.},
	title = {Perspectivas del maíz en el contexto del TLCAN /},
	publisher = {El autor,},
	year = {2006.},
	address = {Chapingo, Méx. :},
	url = {http://10.13.5.2/tesis/103646.pdf}
}