Technology, employment, and output per man in copper mining / by Y. S. Leong [and five others].
- Physical Description: 1 online resource (xvi, 260 pages) : illustrations.
- Publisher: Philadelphia, Pennsylvania : Work Projects Administration, National Research Project : 1940.
"Work Projects Administration, National Research Project, in cooperation with Department of the Interior, Bureau of Mines."
No FDLP item number available.
|Bibliography, etc. Note:||
Includes bibliographical references.
|Source of Description Note:||
Description based on online resource; title from PDF title page (UKY, viewed Feb. 5, 2018).
Search for related items by subject
|Subject:||Copper mines and mining > United States.
Miners > United States.