Reference | {Deposit:: BRITISH SULPHUR CORP. LTD., 1980: WORLD SURVEY OF PHOSPHATE DEPOSITS, 4TH ED., LONDON}{Deposit:: WORLD MINING, WORLD MINES REGISTER, 1981-82}{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:: World Mining, World Mines Register, 1981-82World Mining, World Mines Register, 1981-82}{Production:: PA1-PA2) WORLD MINING, WORLD MINES REGISTER, 1981-82} |