Carte de l'Afrique central au 1:50.000 (type outre-mer).
Institut géographique national (France).Centre de Yaoundé.
Paris : L'Institut Géographique National,
[1954?-
Relief shown by contours, hachures and spot heights.
Depths shown by bathymetric isolines and soundings.
Mixed set includes various editions and printings; some maps done at the Institut's Center at Yaoundé.
Graphic index in central file.