(NmATEMATI^ESKAQ KARTOGRAFIQ (B:s (Nu^EBNOE POSOBIE (B/s - (NgRAUR(B, (Na(B.(Nw(B.s ((NlENINGRAD (B:s (NiZD(B-(NWO lENINGR(B. (NUN(B-(NTA(B,s, 1956)
Keywords: (NmATEMATI^ESKAQ KARTOGRAFIQs