Water pollution control :
Water pollution control : a guide to the use of water quality management principles /
edited by Richard Helmer and Ivanildo Hespanhol.
- 1st. ed.
- London ; New York : E & FN Spon, 1997.
- xvi, 510 p. : ill., maps ; 24 cm.
"Published on behalf of UNEP, United Nations Environment Program, Water Supply & Sanitation Collaborative Council, World Health Organization."
Includes bibliographical references and index.
0419229108
98123030
Water quality management.
Water
363.7394
"Published on behalf of UNEP, United Nations Environment Program, Water Supply & Sanitation Collaborative Council, World Health Organization."
Includes bibliographical references and index.
0419229108
98123030
Water quality management.
Water
363.7394