Copper mining in North America
By: by E. D. Gardner, C. H. Johnson and B. S. Butler.
Contributors: Johnson, Charles H., joint author.; Butler, B. S. b. 1877, joint author.
Series: United States Bureau of mines. Bulletin 405
Publisher: United States Government print. off.
Published: 1938
Place of publication: Washington
Language: eng
Number of pages: 300
Subjects: Copper mines and mining -- North America.
Notes: Includes bibliographies.
At head of title: United States Department of the interior. Harold L. Ickes, secretary. Bureau of mines. John W. Finch, director.