(NiSSLEDOWANIE RUD NA OBOGATIMOSTX (B:s (NpRAKTI^ESKOE RUKOWODSTWO (B/s - (NmITROFANOW(B, (NsPIRIDON iWANOWI^(B.s ((NmOSKWA (B:s (NmETALLURGIZDAT(B,s, 1950)
(NbIBLIOGR(B.: (NS(B. 301-302s
Keywords: (NoBOGA]ENIE RUD(B.s