@book{161869,
	author = {Congreso Obrero Socialista (2o. : 1922 : Izamal, Yucatan)},
	title = {Segundo congreso obrero de Izamal :},
	publisher = {CEHSMO,},
	year = {1977},
	series = {Cuadernos obreros ;},
	address = {México :},
	edition = {2a. ed}
}