Reference | {Deposit:: FARNHAM, L. L., 1961, U.S. BUREAU OF MINES INFORMATION CIRCULAR 8030, P. 33.}{Deposit:: HARRER, C. M., AND KELLY, F. J., 1963, U.S. BUREAU OF MINES INFORMATION CIRCULAR 8190, P. 30.}{Deposit:: U.S. BUREAU OF MINES, MILS, U.S. BUREAU OF MINES COMPUTER DATA BANK, 1978A.} |