| Reference | {Deposit:: MINING MAGAZINE, MINING ACTIVITY IN THE WESTERN WORLD,}{Deposit:: JANUARY 1979, P. 72.}{Deposit:: ENGINEERING AND MINING JOURNAL, THIS MONTH IN MINING, V. 178}{Deposit:: NO. 4, APRIL 1977, P. 146, 150.}{Deposit:: MINING JOURNAL, INDUSTRY IN ACTION, V. 290, NO. 7439, MARCH}{Deposit:: 17, 1978, P. 194.}{Deposit:: WORLD MINING YEARBOOK, CATALOG, SURVEY & DIRECTORY NUMBER}{Deposit:: V. 31, NO. 7, JUNE 25, 1978, P. 240.}{Deposit:: NIGHTINGALE, WM. G., MINING INTERNATIONAL YEAR BOOK, 1978}{Deposit:: FINANCIAL TIMES LIMITED, 1978, P. 250.} |