(NoHRANA WODNYH OB_EKTOW PRI DOBY^E I OBOGA]ENII RUD I UGLEJ (B/s - (NtROFIMOWI^(B, (NeWGENIJ mIHAJLOWI^s; (NgURWI^(B, (NsEMEN mARKOWI^s ((NmOSKWA (B:s (NnEDRA(B,s, 1985)
(NbIBLIOGR(B. : (NS(B. 190-191s
Keywords: (NgORNYE RABOTY (B- (NwLIQNIE NA OKRUVA@]U@ SREDUs; (NwODOEMY (B- (NsANITARNAQ OHRANAs