Reference | {Deposit:: BRITISH SULPHUR CORP. LTD., 1980: WORLD SURVEY OF PHOSPHATE DEPOSITS, 4TH ED., LONDON}{Deposit:: KILINC, M. AND COTILLON, P. 1970: LE GISEMENT DE HAHOTOE KAPOGAME, EXEMPLE DE PIEGE SEDIMENTAIRE A SABLE PHOSPHATES. BULL. BRGM, SECT.II, NO.1, PP.43-63} |