[Hygienic problems of the complex use and preservation of water resources in the Polish Peoples' Republic].
D011044:Poland; D014876:Water Pollution / Q000517:prevention & control*; D014881:Water Supply
Gigienicheskie voprosy kompleksnogo ispol'zovaniia i okhrany vodnykh resursov v Pol'skoĭ Narodnoĭ Respublike.