Estudios (4) Labor (3) Methodology (3) Metodología (3) Trabajo (3) Water (2) Refuse and refuse disposal (2) Residuos (2) Gestión de residuos (2) Agua (2) Environmental management (1) Environmental economics (1) Environmental impact charges (1) Evolution (Biology) (1) Weights and measures (1) Strategy (1) Research (1) Pressure (1) Population (1) Municipal water supply (1) Materials (1) Management audit (1) Identification (1) Finance charges (1) Fees, Administrative (1) Decision making (1) Attention (1) Agua--Abastecimiento urbano (1) Tasas (1) Costes financieros (1)