Technology, Employment, and Output Per Man in Copper Mining
Author | : Yau Sing Leong |
Publisher | : |
Total Pages | : 282 |
Release | : 1940 |
Genre | : Copper mines and mining |
ISBN | : |
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Author | : Yau Sing Leong |
Publisher | : |
Total Pages | : 282 |
Release | : 1940 |
Genre | : Copper mines and mining |
ISBN | : |
Author | : United States. Work Projects Administration |
Publisher | : |
Total Pages | : 282 |
Release | : 1940 |
Genre | : |
ISBN | : |
Author | : National Research Project on Reemployment Opportunities and Recent Changes in Industrial Techniques (U.S.) |
Publisher | : |
Total Pages | : 294 |
Release | : 1937 |
Genre | : Mineral industries |
ISBN | : |
Author | : United States. Congress. Senate. Committee on Public Lands and Surveys |
Publisher | : |
Total Pages | : 1632 |
Release | : 1942 |
Genre | : Mineral lands |
ISBN | : |
Author | : United States. Bureau of Mines |
Publisher | : |
Total Pages | : 838 |
Release | : 1960 |
Genre | : Mineral engineering |
ISBN | : |
Author | : United States. Bureau of Mines |
Publisher | : |
Total Pages | : 846 |
Release | : 1960 |
Genre | : Government publications |
ISBN | : |
Author | : United States. Bureau of Mines |
Publisher | : |
Total Pages | : 844 |
Release | : 1960 |
Genre | : Mineral industries |
ISBN | : |