Reference | {Deposit:: U.S. BUREAU OF MINES MINERALS YEARBOOK, 1953, 1955, 1956.}{Deposit:: ENGINEERING AND MINING JOURNAL JUNE 1977 V. 178, NO. 6, P. 138; AUG 1977 V. 178, NO. 7, P. 83-90.}{Production:: USBM MINERALS YEARBOOK 1953, 1955, 1956; EAND MJ JUNE 1977, AUG 1977.} |