@book{92932,
	author = {Díaz León, Marco Antonio},
	title = {Nueve mil años de agricultura (videograbación) :},
	publisher = {Geavideo,},
	year = {1994.},
	address = {[México, D. F.] :},
	url = {http://10.13.5.2/tesis/sist96466.avi}
}