(NwLAGOOBOROT W PRIRODE I EGO ROLX W FORMIROWANII RESURSOW PRESNYH WOD (B:s (NmATERIALY wSESO@ZNOGO SOWE]ANIQ (B/s - (NkALININ(B, (Ng(B. (Np(B.s ((NmOSKWA (B:s (NsTROJIZDAT(B,s, 1974)
Keywords: (NnAUKI O zEMLE (B- (NwLAGOOBOROT W PRIRODE I EGO ROLX W FORMIROWANII RESURSOW PRESNYH WODs