(NiSSLEDOWANIE O PRIRODE I PRI^INAH BOGATSTWA NARODOW (B/s - (NsMIT(B, (NaDAMs; (NuDALXCOW(B, (Ni(B.s; (NiNSTITUT k(B. (NmARKSA I f(B. (N|NGELXSAs ((NlENINGRAD (B;s (NmOSKWA (B:s (NsOC\KGIZ(B,s, 1931)
(Nt(B. 1 (1935 (NG(B., 371 (NS(B.) ; (Nt(B. 2 (1931., 552 (NS(B.)s
Keywords: (N|KONOMIKAs