edited by Rogelio Diaz-Guerrero. -- North-Holland. -- (Proceedings of the XXIII International Congress of Psychology of the International Union of Psychological Science (IUPsyS), Acapulco, Mexico, September 2-7, 1984 : selected/revised papers / editorial committee, Rogelio Díaz Guerrero, Wayne H. Holtzman, Mark R. Rosenzweig ; executive editor, Juan José Sánchez-Sosa ; vol.2).