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Coal resources of Butler County, Pennsylvania

Open-File Report 69-193

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Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Coal resources of Butler County, Pennsylvania
Series title:
Open-File Report
Series number:
69-193
Edition:
-
Year Published:
1969
Language:
ENGLISH
Publisher:
U.S. Geological Survey],
Description:
71 p. ill., maps ;28 cm.