Pollution and water resources

Eitemau Tebyg

• Experiments with the water finder in the trap region of western india
  gan: Mann, Harold H.
  Cyhoeddwyd: (1915)
• The story of water pollution control
  Cyhoeddwyd: (1958)
• River pollution : an ecological perspective
  gan: Haslam, S.M
  Cyhoeddwyd: (1990)
• Water: : the nature, uses, and future of our most precious and abused resource
  gan: Powledge, Fred
  Cyhoeddwyd: (1982)
• Pollution and control : a social history of the thames in the nineteenth century
  gan: Luckin, Bill
  Cyhoeddwyd: (1986)