| Reference | {Deposit:: MURDOCK, T. G. THE MINING INDUSTRY IN NORTH CAROLINA FROM 1}{Deposit:: 1945. NORTH CAROLINA DEPT. OF CONSERVATION AND DEVELOPMENT}{Deposit:: ECONOMIC PAPER NO. 65, 1948, PP. 8-10.}{Deposit:: BRYSON, H. J. THE MINING INDUSTRY IN NORTH CAROLINA DURING}{Deposit:: AND 1928. NORTH CAROLINA DEPT. OF CONSERVATION AND DEVELOPM}{Deposit:: ECONOMIC PAPER NO. 63, 1930, PP. 19-28.} |