Book Reviews : Operation and maintenance of urban water supply and sanitation systems - a guide for managers by World Health Organisation. Published by World Health Organisation,1994. 62 pp. Sw fr 23 (or Sw fr 16.10 in developing countries). Paperback. ISBN: 92 4 154471 6

Book Reviews : Operation and maintenance of urban water supply and sanitation systems - a guide for managers by World Health Organisation. Published by World Health Organisation,1994. 62 pp. Sw fr 23 (or Sw fr 16.10 in developing countries). Paperback. ISBN: 92 4 154471 6

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