[Joint efforts of Comecon member countries in the field of the efficient utilization and protection of water resources].
D002031:Bulgaria; D003604:Czechoslovakia; D005859:Germany, East; D006814:Hungary; D007391:International Cooperation; D011044:Poland; D012383:Romania; D014586:USSR; D014876:Water Pollution / Q000517:prevention & control*; D014881:Water Supply
Sovmestmye raboty stran-chlen SEV v oblasti ratsional'nogo ispol-zovaniia i okhrany vodnykh resursov.