(NmARK[EJDERSKOE DELO (B:s (Nu^EBNOE POSOBIE (B/s - (NpETROW(B, (NnIKOLAJ sTEPANOWI^s ((NmOSKWA (B:s (NgOSGORTEHIZDAT(B,s, 1960)
Keywords: (NgORNOE DELOs