Author: KOCH, P.
Title: Notice Explicative Sur La Feuille Ngaoundere-Ouest. Carte Geologique de Reconnaissance a l'echelle du 1/500,000. Leves effectues du 1952 a 1953.
Description: First Edition; 8vo; pp. 48; 1 loose folding colour map in pocket at rear, bibliography; original stiff stapled wrapper, wrapper torn along spine, a good copy. Paris, Republique du Cameroun, 1959. Text in French.

Keywords: geology mining Africa mines mining French foreign language