[Trends of development and future investigations in the field of water hygiene and guarding the sanitation of bodies of water].
D012498:Sanitary Engineering; D014586:USSR; D014876:Water Pollution / Q000517:prevention & control*
Puti razvitiia i napravleniia dal'neĭshikh issledovaniĭ v oblasti gigieny vody i sanitarnoĭ okhrany vodoemov.