[Apropos of establishing sanitary protection zones for the surface sources of a centralized water supply].
D008966:Moldova; D012499:Sanitation; D012621:Seasons; D014871:Water Microbiology; D014881:Water Supply / Q000592:standards*
Po povodu obosnovaniia zon sanitarnoĭ okhrany poverkhnostnykh istochnikov tsentralizovannogo vodosnabzheniia