| Reference | {Deposit:: BRITISH SULPHUR CORP. LTD., 1980: WORLD SURVEY OF PHOSPHATE DEPOSITS, 4TH ED., LONDON}{Deposit:: ANONYM, 1980: INVESTIGATION OF EGYPTS ABU TARTUR PHOSPHATE DEPOSIT, PHOSPHORUS & POTASSIUM, NO.109, P.32-39}{Deposit:: WASSEF, A.S. ET AL., 1977: THE GEOLOGICAL AND ECONOMIC EVALUATION OF ABU TARTUR PHOSPHORITE DEPOSIT, WESTERN DESERT, EGYPT; ANNUAL REPORT, GEOLOGICAL SURVEY} |