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International Reference Centre Community Water Supply and Sanitation.
- 2nd ed.
- Rijswijk,Netherlands : I.R.C.C.W.S.S., 1982.
- 1 v., various pagings.
- Technical paper no. 20. .
9066870028.
Sanitation--Developing countries.
Water-supply--Developing countries.
Drinking water--Developing countries.
9066870028.
Sanitation--Developing countries.
Water-supply--Developing countries.
Drinking water--Developing countries.