Ivanildo Hespanhol, Richard Helmer, The Water Supply & Sanitation Collaborative Council, United Nations Environment Programme, World Health Organization (WHO)">“Water Pollution Control” by Ivanildo Hespanhol, Richard Helmer, The Water Supply & Sanitation Collaborative Council, United Nations Environment Programme, World Health Organization (WHO)

Helmer, Richard., Hespanhol, Ivanildo. “Water Pollution Control.” United Nations Environment Programme. The Water Supply & Sanitation Collaborative Council and the World Health Organization. 1997. Case Study I* – The Ganga, India Edited by Richard Helmer and Ivanildo Hespanhol Published on behalf of the United Nations Environment Programme, the Water Supply…
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