Reference | {Deposit:: BRITISH SULPHUR CORP. LTD., 1980: WORLD SURVEY OF PHOSPHATE DEPOSITS, 4TH ED., LONDON}{Deposit:: E&MJ, INTERNATIONAL DIRECTORY OF MINING, 1979, NEW YORK}{Deposit:: British Sulphur Corp. Ltd., 1980: World Survey Of Phosphate Deposits, 4th Ed., LondonBritish Sulphur Corp. Ltd., 1980: World Survey Of Phosphate Deposits, 4th Ed., London}{Deposit:: E&Mj, International Directory Of Mining, 1979, New YorkE&Mj, International Directory Of Mining, 1979, New York} |