Author: HOURCQ, V; HAUSKNECHT, J-J.
Title: Notice Explicative Sur La Feuille Libreville-Ouest. Carte Geologique de Reconnaissance a l'echelle du 1/500,000. Leves effectues de 1949 a 1950.
Description: First Edition; 8vo; pp. 25; 1 loose folding colour map in pocket at rear, bibliography; original stiff stapled wrapper, wrapper browned, a good copy. Paris, Government General de l'Afrique Equatoriale Francaise, 1954. Text in French.

Keywords: geology mining Africa mines mining French foreign language