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Coal exploratory drilling; a cost percentage comparison of three methods

Open-File Report 79-1100

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Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Coal exploratory drilling; a cost percentage comparison of three methods
Series title:
Open-File Report
Series number:
79-1100
Edition:
-
Year Published:
1979
Language:
ENGLISH
Publisher:
U.S. Geological Survey,
Description:
11 p. :graphs, ill. ;28 cm.