Marseille (1) France (1) Provence-Alpes-Côte d'Azur (1) Royaume-Uni (1) Assaying (1) Land mines (1) Syndicalism (1) Occupational mobility (1) Mines and mineral resources (1) Mines (Military explosives) (1) Working class (1) Goal (Psychology) (1) Employment (Economic theory) (1) Coal (1) Capital (1) Finance (1) Research (1) Measurement (1) Analysis (1) Movements (1) Structure (1) Movilidad laboral (1) Investigación (1) Minas militares (1) Carbón (1) Sindicalismo (1) Medición (1) Finanzas (1) Industria (1) Fermeture (1)