(NbOKS (B: s (NmETOD(B. (NPOSOBIE PO OBU^ENI@ I TRENIROWKE (B/ s - (NiWANOW(B, (Ni(B.(Nk(B. s ((NkIEW (B: s (NgOSMEDIZDAT ussr(B, s, 1949)
Keywords: (NbOKS (B- (NmETODI^ESKIE POSOBIQs