| Reference | {Reserve-Resource:: EVANS, T.B., AND N.A. EILERTSEN. MINING METHODS AND COSTS}{Reserve-Resource:: AT THE SUNBRIGHT LIMESTONE MINE. FOOTE MINERAL COMPANY,}{Reserve-Resource:: SUNBRIGHT, VA. BUMINES IC 7793, 1957, 44 PP.}{Reserve-Resource:: PERSONAL COMMUNICATION WITH JIM SEARLS, LITHIUM MINERAL}{Reserve-Resource:: SPECIALIST, SEPT. 15, 1981.} |