Sociology (2) Salt mines and mining (2) Salinas (2) Sociología (2) Cuba (1) Trails (1) Social sciences (1) Shock (1) Political science (1) Policy sciences (1) Imperialism (1) History (1) Essay (1) Dynamics (1) Diplomacy (1) Determinants (1) Computer output microfilm devices (1) Chemical elements (1) Character (1) Ordenadores--Salida en microfilme (1) Crítica (1) Determinantes (1) Shock (1) Estudio (1) Ensayo (1) Diplomacia (1) Ciencias sociales (1) Carácter (1) Caminos (1) Dinámica (1)