Reference | {Deposit:: BRITISH SULPHUR CORP. LTD., 1980: WORLD SURVEY OF PHOSPHATE DEPOSITS, 4TH ED., LONDON}{Deposit:: SALVAN, H., 1960: LES PHOSPHATES DE CHAUX SEDIMENTAIRES DU MAROC. NOTES MAROCAINES, SOC. GEOGR. MAROC, NO.14, P.7-20, RABAT}{Production:: INFORMATION OBTAINED DURING VISIT} |