Copper ores
By: by Robert Allen.
Contributors: Imperical Institute. Mineral Resources Committee.
Publisher: John Murray
Published: 1923
Place of publication: London
Language: eng
Notes: At head of title: Imperial Institute. Monographs on mineral resources with special reference to the British Empire. Prepared under the direction of the Mineral Resorces Committee of the Imperial Institute with the assistance of the scientific and technical staff.