(NbERE^X SOKROWI]A PRIRODY (B/s - (NaWERIN(B, (N`RIJ wIKTOROWI^s; (NnIKOLAEWA(B, (NlIDIQ pETROWNAs ((NkI[INEW (B:s (NkARTQ mOLDOWENQSK\(B,s, 1980)
Keywords: (NvIWOTNYEs -- (NoHRANAs -- (Nmssrs; (NrASTITELXNYE RESURSYs -- (NoHRANAs -- (Nmssrs