| Reference | {Deposit:: SMIRNOV, V. I., AND GORZHEVSKY, D. I. DEPOSITS OF LEAD AND}{Deposit:: ZINC. SMIRNOV, V. I., ED. ORE DEPOSITS OF THE USSR VOL-}{Deposit:: UME 2. PITMAN PUBLISHING, LONDON, 1977, V. 2, P. 204-}{Deposit:: 207.}{Deposit:: COMMODITIES RESEARCH UNIT LIMITED, LONDON, THE COPPER,}{Deposit:: LEAD, AND ZINC INDUSTRIES OF THE FORMER USSR, VOL. 2,}{Deposit:: PP. 67-68 (1992).} |