| Reference | {Deposit:: M.H. BUCKENHAM. ASSISTANCE IN PHOSPHATE ORE BENEFICIATION}{Deposit:: AND FERTILIZER MANUFACTURING IRAN. UNITED NATIONS. 1988.}{Deposit:: BRITISH SULPHUR, INC. WORLD SURVEY OF PHOSPHATE DEPOSITS,}{Deposit:: 5TH ED. 1987, PP. 160-161.} |