Reference | {Deposit:: BRITISH SULPHUR CORPORATION, WORLD SURVEY OF PHOSPHATE}{Deposit:: DEPOSITS FOURTH ED., LONDON, 1980.}{Deposit:: MINING ANNUAL REVIEW, 1984, P. 437}{Deposit:: MINING ANNUAL REVIEW, 1987, P. 450.}{Deposit:: MINING ANNUAL REVIEW, 1988, P. 428.}{Reserve-Resource:: DEPOSITS, FIFTH ED., LONDON, PP. 176-177.} |