(N|KSPLUATACIQ GIDROMELIORATIWNYH SISTEM (B:s [(Nu^EBNOE POSOBIE(B] /s - (N{AROW(B, (NiWAN aLEKSANDROWI^s ((NmOSKWA (B:s (NkOLOS(B,s, 1968)
(NbIBLIOGR(B.: (NS(B. 380-381s
Keywords: (NgIDROMELIORACIQ s -- (Nu^EBNIKI I POSOBIQs