Reference | {Deposit:: MAGNUSSON, N.H., 1950, ZINC AND LEAD DEPOSITS OF CENTRAL SWEDEN; INT. GEOL. CONG. 18TH, REPT. 17, P. 371 - 79}{Deposit:: MINING MAGAZINE, APRIL 1978, P. 302-309.}{Production:: ANNUAL PRODUCTION IS FROM E/MJ INTL. DIRECTORY, 1976, P. 286. THE CUMULATIVE PRODUCTION IS FROM GRIP, 1978.} |