(NdRAGOCENNYE I CWETNYE KAMNI rOSSII (B/s - (NfERSMAN(B, (NaLEKSANDR eWGENXEWI^s ((NpETROGRAD s 4-(NQ gOS(B. (NTIP(B., s, 1920)
(Nt(B. 1 (1920. 420 (NS(B.,)s (NoTW(B. (NRED(B. (Nd(B.(Ns(B. (NbELQNKINs (Nt(B. 2 (1925; 420 (NS(B.,) :s (NmESTOROVDENIQs
Keywords: (NdRAGOCENNYE KAMNI rOSSIIs; (NcWETNYE KAMNI rOSSIIs