[Bacteriology of the surface stratum in natural water supply of the Volga Delta].
D001419:Bacteria; D001432:Bacteriology; D014881:Water Supply / Q000382:microbiology*
BACTERIA; WATER SUPPLY/bacteriology
Bakterial'noe naselenie poverkhnostnoi plenki vody v estestvennykh vodoemakh del'ty Volgi.