@book{14769,
	author = {Hernández Xolocotzi, Efraím.},
	title = {Areas agrícola de México.},
	publisher = {(s.e.),},
	year = {(s.a.).},
	address = {(s.l.) :},
	url = {http://10.13.5.2/tesis/x15808.pdf}
}