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Tunneling Technology: Its Past and Present
| Author: | Nasiatka, Thomas M. |
|---|---|
| Year: | 1968 |
| Document Type: | N/A |
| SUDOC: | I 28.27:8375 |
| Series: | United States Bureau of Mines Reports |
| Report Number: | I. C. 8375 |
| Subject: | Tunneling -- History. |
| Link: | http://digital.library.unt.edu/ark:/67531/metadc170796/ |
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