Labor (1) Origin (1) Water resources development (1) Water (1) Sanitation (1) Perspective (1) Drinking water (1) Capital (1) Origen (1) Demanda (1) Perspectiva (1) Capital (1) Salubridad pública (1) Agua potable (1) Recursos hidráulicos (1) Agua (1) Trabajo (1) distribution (1)