Carte géologique du Katanga et notes descriptives

Studt, Franz Eduard · 1908 · Bruxelles, [Impr. veuve Monnom] · 5 pictures

Geology · Mines and mineral resources · Geology -- Congo (Democratic Republic) -- Katanga · Mines and mineral resources -- Congo (Democratic Republic) -- Katanga

Internet Archive · Smithsonian Libraries and Archives · Public domain (published before 1931) · More from this library