@book{79753,
	author = {Toranzo Roca, Carlos F.},
	title = {Marx :},
	publisher = {Universidad Autónoma de Zacatecas. Facultad de Ciencias Sociales,},
	year = {1983?},
	series = {Documentos de trabajo},
	address = {Zactecas, Zac. :}
}