Economic geology of the Beaver Quadrangle, Pennsylvania : (southern Beaver and northwestern Allegheny counties) / by Lester H. Woolsey.
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| Format: | Government Document eBook |
| Language: | English |
| Published: |
Washington, D.C. :
Department of the Interior, United States Geological Survey,
1906.
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| Series: | Bulletin (Geological Survey (U.S.)) ;
no. 286. Series A--Economic geology ; 74. Series B--Descriptive geology ; 93. |
| Subjects: |
Internet
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| Call Number: |
I 19.3:286
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| I 19.3:286 | Available |