@book{5236,
	author = {Dzib Aguilar, Luis Antonio. and Paz G., Alejandro.},
	title = {Los sistemas de cultivo para maíz en la sierra de Zongolica, Ver.},
	publisher = {UACH. Centro Regional Universitario Oriente,},
	year = {1991},
	address = {Chapingo, Méx. :},
	note = {56-191}
}