Reference | {Deposit:: 1976-77 WORLD MINES REGISTER}{Deposit:: SMITH, A., MINING AT PANASQUEIRA MINE, PORTUGAL, INSTITUTION}{Deposit:: OF MINING AND METALLURGY, JULY, 1979.}{Deposit:: DOS REIS, A.C., AS MINAS DA PANASQUEIRA BERALT TIN & WOLFRAM}{Deposit:: LTD., 1971.}{Deposit:: ANNUAL REPORTS, BERALT TIN & WOLFRAM LTD.}{Deposit:: BERALT TIN AND WOLFRAM LIMITED, 1927-77.}{Production:: ROSKILL INFORMATION SERVICES; THE ECONOMICS OF TUNGSTEN *H}{Production:: EDITION 1990. P 115.} |