Reference | {Deposit:: COMMODITIES RESEARCH UNIT LIMITED, THE BASE METAL}{Deposit:: INDUSTRIES OF EASTERN EUROPE, NOV. 1990.}{Deposit:: ATLAS OF EASTERN EUROPE, CENTRAL INTELLIGENCE AGENCY,}{Deposit:: AUG. 1990.}{Deposit:: BOMSEL AND VON HIRSCHHAUSEN, THE MINING AND}{Deposit:: METALLURGICAL INDUSTRIES OF EASTERN EUROPE, CERNA, VOL.1,}{Deposit:: JULY 1991.}{Deposit:: METALLURGICAL INDUSTRIES OF EASTERN EUROPE, CERNA, VOL.3,}{Deposit:: JULY 1991, PP.217-233.}{Deposit:: HANNOVER, BUNDESANSTALT FUR GEOWISSENSCHAFTEN UND}{Deposit:: ROHSTOFFE, RUMANIEN, DEC. 1977.}{Deposit:: ATLAS OF THE WORLD, THE TIMES BOOK COMPANY, SLATE #82,}{Deposit:: 1983.}{Deposit:: HURLBUT, CORNELIUS S., DAN* MANUAL OF MINERALOGY,}{Deposit:: EIGHTEENTH EDITION, 1971.}{Deposit:: MINERAL FACTS AND PROBLEMS, UNITED STATES DEPARTMENT OF}{Deposit:: THE INTERIOR, BUREAU OF MINES BULLETIN 675, EDITION 1985.} |