Reference | {Deposit:: PHOSPHORUS & POTASSIUM, NO.103, 1979, P.30-31, LONDON}{Deposit:: E&MJ, INTERNATIONAL DIRECTORY OF MINING, 1979, 1981, NEW YORK}{Deposit:: Phosphorus & Potassium, No.103, 1979, P.30-31, LondonPhosphorus & Potassium, No.103, 1979, P.30-31, London}{Deposit:: E&Mj, International Directory Of Mining, 1979, 1981, New YorkE&Mj, International Directory Of Mining, 1979, 1981, New York}{Production:: PA1-PA3) PHOSPHORUS & POTASSIUM, NO.103, 1979, LONDON} |