[A CASE OF POLLUTION OF THE MUNICIPAL WATER SUPPLY].
D004787:Environmental Pollution; D012722:Sewage; D014586:USSR; D014876:Water Pollution; D014881:Water Supply
D012722:Sewage
SEWAGE; USSR; WATER POLLUTION; WATER SUPPLY
CLUCHA I ZAGRIAZNENIIA VODY GORODSKOGO VODOPROVODA.