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Subsidence over four room-and-pillar sections in southwestern Pennsylvania /
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| Auteur principal: | Moebs, Noel N. |
|---|---|
| Format: | Livre |
| Langue: | anglais |
| Publié: |
Washington, D.C. :
U.S. Dept. of the Interior, Bureau of Mines,
1982.
|
| Collection: | Report of investigations
8645 |
| Sujets: | |
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