Posadas, J. (1977). The Meeting of the Socialist International: The Congress of the Spanish P.S.O.E. and the World Process of the Revolution. Revolutionary Party Workers (Trotskyist).
Chicago-referens (17:e uppl.)Posadas, J. The Meeting of the Socialist International: The Congress of the Spanish P.S.O.E. and the World Process of the Revolution. London: Revolutionary Party Workers (Trotskyist), 1977.
MLA-referens (8:e uppl.)Posadas, J. The Meeting of the Socialist International: The Congress of the Spanish P.S.O.E. and the World Process of the Revolution. Revolutionary Party Workers (Trotskyist), 1977.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.