| Reference | {Deposit:: MINING JOURNAL, INDUSTRY IN ACTION, V. 289, NO. 7417,}{Deposit:: OCTOBER 14, 1977, P. 316.}{Deposit:: MINING MAGAZINE, MINING ACTIVITY-1968, V. 121, NO. 3,}{Deposit:: SEPTEMBER 1969, P. 259.}{Deposit:: ENGINEERING AND MINING JOURNAL, 1978 SURVEY OF MINE AND}{Deposit:: PLANT EXPANSION, V. 179, NO. 1, JANUARY 1978, P. 79.}{Deposit:: INDUSTRIAL MINERALS, ASBESTOS- PRODUCTION LOSSES PROLONG THE}{Deposit:: SHORTAGE, V. 93, JUNE 1975, P. 39.}{Deposit:: U.S. BUREAU OF MINES STAFF, MINERALS YEARBOOK 1973, P. 178.}{Deposit:: NIGHTINGALE, WM. G., MINING INTERNATIONAL YEAR BOOK 1978,}{Deposit:: THE FINANCIAL TIMES LIMITED, 1978, P. 291, 292.}{Deposit:: ENGINEERING AND MINING JOURNAL INTERNATIONAL DIRECTORY OF}{Deposit:: MINING AND MINERAL PROCESSING OPERATIONS, MCGRAW-HILL,}{Deposit:: 1978, P. 294.}{Deposit:: MINING MAGAZINE, MINING ACTIVITY IN THE FREE WORLD, V. 119,}{Deposit:: NO. 3, SEPTEMBER 1968, P. 231.} |