(NoKRUVA@]AQ SREDA I ^ELOWEKs (NU^EBNOE POSOBIE DLQ STUDENTOW WUZOWs - (NnIKITIN(B,(Nd(B. (Np(B.s (NdMITRIJ pETROWI^s; (NnOWIKOW(B,(N`(B. (Nw(B.s (N`RIJ wLADIMIROWI^s ((Nm(B.s (NwYS[AQ [KOLAs, 1980)
Keywords: (N|KOLOGIQs -- (Nu^EBNIKI I POSOBIQs; (NoHRANA OKRUVA@]EJ SREDYs -- (Nu^EBNIKI I POSOBIQs