World Health Organization (WHO)
Combating waterborne disease at the household level [TXT]. -- Geneva : WHO (World Health Organization), 2007
ISBN: 9789241595223

1. CONTAMINACION DEL AGUA; 2. ENFERMEDADES INFECCIOSAS; 3. COLERA; 4. DIARREA; 5. SANEAMIENTO

(1) Inv.: 00070915 S.T.: 614.51 COM ej.1 ; (1) Inv.: 00071011 S.T.: 614.51 COM ej.2