Horizontal drilling for oil in Pennsylvania :a preliminary report

Author: Elder, C. W.,
Year: 1944
Document Type: BMRA
Issuing Agency: Bureau of Mines,
SUDOC: I 28.23:3779
Series: Report of investigations / Bureau of Mines ;
Report Number: 3779
Subject: Oil well drilling--Pennsylvania
Link: https://hdl.handle.net/2027/mdp.39015078497453

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