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Cost analyses of model mines for strip mining of coal in the United States
| Year: | 1972 |
|---|---|
| Document Type: | USBI |
| Issuing Agency: | Bureau of Mines, |
| SUDOC: | I 28.27:8535 |
| Series: | Information circular / Bureau of Mines |
| Report Number: | 8535 |
| Subjects: | Strip mining |
| Coal mines and mining--United States--Costs | |
| Link: | https://hdl.handle.net/2027/mdp.39015078457549 |
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