Columbia subject headings:
Sanitation, Rural--Namibia--Caprivi.
Water resources development--Namibia--Caprivi.
Water-supply, Rural--Namibia--Caprivi.
Harvard subject headings:
Sanitation, Rural--Namibia--Caprivi.
Water resources development--Namibia--Caprivi.
Water-supply, Rural--Namibia--Caprivi.
Princeton subject headings: