@book{2099,
	author = {BETANZOS MENDOZA, ESTEBAN. and UNIVERSIDAD AUTONOMA DE CHIAPAS.},
	title = {PRODUCCION : },
	publisher = {UN.A.CH.},
	year = {1988},
	series = {COLEC. ESPECIAL},
	address = {TUXTLA GUTIERREZ ; CHIAPAS: }
}