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Degasification of virgin Pittsburgh coalbed through a large borehole

Bibliographic Details
Corporate Author: United States. Bureau of Mines.
Other Authors: Fields, H. H.
Format: Government Document Online Book
Language:English
Published: [Pittsburgh, Pa.?] : U.S. Dept. of the Interior, Bureau of Mines, [1973]
Series:Report of investigations (United States. Bureau of Mines) ; 7800.
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Online Access:ONLINE VERSION
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