Geology and mineral resources of part of the Gola Forests, South-Eastern Sierra Leone /
Wilson, N. W.
Freetown : Govt. of Sierra Leone,
1965.
Maps in a pocket at the back of the book: Provisional plan of Bagbe alkalic complex. 1:20,000 (DOS (Geol) 1156) -- The geology of Bagla Hill. 1:20,000 (DOS (Geol) 1155) -- Structural map of Gola Forests. 1:160,000 (DOS (Geol) 1153) -- Geomorphological map of Gola Forests. 1:160,000 (DOS (Geol) 1154) -- Geology of the Gola Forests area. 1:50,000 Sheets 103, 104, 112 (DOS (Geol) 1152).