@book{139745,
	author = {Congreso de la Internacional Comunista (3o., 4o.)  and Poyrazian, Maria Teresa, },
	title = {Los cuatro primeros congresos de la Internacional Comunista },
	publisher = {Pasado y Presente,},
	year = {1977},
	series = {Pasado y Presente ;},
	address = {México :},
	edition = {2a ed.}
}