@book{75770,
	author = {Martínez, Elfego,},
	title = {Unidad regional de Acayucan : },
	publisher = {Dirección General de Culturas Populares,},
	year = {1981},
	series = {Cuadernos de Trabajo / Acayucan ; },
	address = {México :},
	edition = {1a ed.}
}