Columbia subject headings:
Drinking water--Contamination--Health aspects.
Groundwater--Purification--India.
Sanitation, Household--India.
Water quality management--India.
Water-supply, Rural--India--Management.
Harvard subject headings:
Drinking water--Contamination--Health aspects.
Drinking water--India.
Groundwater--Purification--India.
Public health--India
Sanitation, Household--India.
Sanitation--India.
UNICEF
Water quality management--India
Water-supply, Rural--India--Management.
Water-supply--India
Princeton subject headings: