Mining methods and costs at the Hart Spur pit of the Fort Worth Sand & Gravel Co., Inc., Fort Worth, Tex
| Main Author: | Popplewell, Thomas E. |
|---|---|
| Format: | Book |
| Language: | English |
| Published: |
Washington, D.C. :
U.S. Dept. of Commerce, Bureau of Mines,
1932.
|
| Physical Description: |
12 pages : illustrations ; 27 cm. |
| Series: |
Information circular (United States. Bureau of Mines) ;
6652. |
| Subjects: |
| Physical Description: |
12 pages : illustrations ; 27 cm. |
|---|