Analyses of Pennsylvania bituminous coals

Additional Authors: Ashley, Geo. H.
Year: 1939
Document Type: USBM
Issuing Agency: U.S. Dept. of the Interior, Bureau of Mines,
SUDOC: I 28.7:590
Series: Technical paper / United States Department of the Interior, Bureau of Mines ;
Report Number: 590
Subject: Bituminous coal--Pennsylvania
Link: https://hdl.handle.net/2027/mdp.39015078485201

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