| Reference | {Deposit:: DUKE, V. W. A., 1979, MANGANESE, A MINERAL COMMODITY REVIEW: INTERNAL REPORT 53, SOUTH AFRICAN MINERALS BUREAU, JOHANNESBURG, SOUTH AFRICA, P. 86-88.}{Deposit:: NATIONAL MATERIALS ADVISORY BOARD, 1981, MANGANESE RESERVES AND RESOURCES OF THE WORLD AND THEIR INDUSTRIAL IMPLICATIONS: NMAB-374, NATIONAL ACADEMY OF SCIENCES, WASHINGTON, DC, P. 201-203. (G12, L11, G13, C14, RR17-RR18, RR24)}{Deposit:: GRANDIN, G., 1976, APLANISSEMENTS CUIRASSES ET ENRICHISSEMENT DES GISEMENTS DE MANGANESE DANS QUELQUES REGIONS *FRIQUE DE *UEST: MEMOIRE ORSTOM NO. 82, PARIS.} |