| References: |
- Deposit:: THE TIMES ATLAS OF THE WORLD, THE TIMES BOOK COMPANY,
- Deposit:: 1983.
- Deposit:: ATLAS OF EASTERN EUROPE, CENTRAL INTELLIGENCE AGENCY,
- Deposit:: AUGUST 1990.
- Deposit:: DEVELOPMENT TRENDS OF THE NON-FERROUS METAL INDUSTRY
- Deposit:: IN EASTERN EUROPE, METALLGESELLSCHAFT AG, DECEMBER 1991.
- Deposit:: COMMODITIES RESEARCH UNIT LIMITED, THE BASE METAL
- Deposit:: INDUSTRIES OF EASTERN EUROPE, NOVEMBER 1990.
- Production:: ROMANIAN MINING RECONSTRUCTION, MINING JOURNAL, LONDON,
- Production:: AUGUST 9, 1991.
- Production:: THE MINING AND METALLURGICAL INDUSTRIES IN EASTERN
- Production:: EUROPE, VOL. I, VOL. II, VOL. III, CERNA, JULY 1991.
- Production:: HURLBUT, CORNELIUS S., DAN* MANUAL OF MINERALOGY,
- Production:: EIGHTEENTH EDITION, 1971.
- Production:: MINERAL FACTS AND PROBLEMS, UNITED STATES DEPARTMENT OF
- Production:: THE INTERIOR, BUREAU OF MINES BULLETIN 675, EDITION 1985.
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