| Reference | {Deposit:: BUNDESONSTALT FUR GEOMISSENSCHEFTEN UND ROHSTOFFE MOLYBDENUM}{Deposit:: UND WOLFRAM, J. BUROS, H. WAGNER}{Deposit:: MINING ANNUAL REVIEW, 1978, P. 573.}{Deposit:: RABCHEVSKY, GEORGE A., THE TUNGSTEN INDUSTRY OF THE U.S.S.R.}{Deposit:: MINERAL ISSUES: AN ANALYTICAL SERIES, USDOI, BUREAU OF}{Deposit:: MINES, NOVEMBER 1988, P. 31.} |