Carta del XVIVº Congreso del Partido Obrero a los partidos del Frente de Izquierda. Por listas comunes en los distritos y un Congreso del Movimiento Obrero y la Izquierda.

The Digital Archive of Latin American and Caribbean Ephemera is a steadily growing repository containing a previously unavailable subset of Princeton’s Latin American Ephemera Collection as well as newly acquired materials being digitized and added on an ongoing basis.