Héctor Collantes
Type de document
Co-auteur
Date
Mot-clé
Pérou (2) Labor (2) Employees (2) Materials (2) Industrial hygiene (2) Health (2) Salud (2) Estudio (2) Materiales (2) Higiene industrial (2) Trabajo (2) Trabajadores (2) Subsoils (1) Minors (1) Work environment (1) Wholesale trade (1) Weights and measures (1) Valuation (1) Time (1) Stowage (1) Stevedores (1) Stature (1) Outlet stores (1) Neck (1) Months (1) Mines and mineral resources (1) Miners (1) Mineral industries (1) Markets (1) Lungs--Dust diseases (1)