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Results 1 - 3 of 3: (Number of pages: 1)

  1. Householders guide to selecting a pit latrine (1981)
    Cotton, Andrew; Training Programmes in Water Supply and Sanitation for Sri Lanka 1981-1985; Water, Engineering and Development Centre (WEDC); Sri Lanka, National Housing Development Authority
  2. Pit latrines for Sri Lanka (1981)
    Cotton, Andrew; Training Programmes in Water Supply and Sanitation for Sri Lanka 1981-1985; Water, Engineering and Development Centre (WEDC); Sri Lanka, National Housing Development Authority
  3. Training manual on rural water supply and sanitation (1981)
    Cotton, Andrew; Training Programmes in Water Supply and Sanitation for Sri Lanka 1981-1985; Water, Engineering and Development Centre (WEDC); Sri Lanka, National Housing Development Authority