)٤( R. Dennis O &apos; Connell, &quot; Battle Mountain Gold Company &apos; s Bolivian experience &quot; , Price Waterhouse Mining Conference, San Francisco, California, July 1995 ) &quot; تجربة شركة &quot; باتل ماونتن &quot; للذهب في بوليفيا &quot; (.
4 R. Dennis O &apos; Connell, &quot; Battle Mountain Gold Company &apos; s Bolivian experience &quot; , documento presentado en la conferencia de Price Waterhouse Mining, celebrada en San Francisco, California, en julio de 1995.