Economic methods of utilizing western lignites [microform]

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Bibliographic Details
Corporate Author:	United States. Bureau of Mines
Other Authors:	Babcock, E. J. (Earle Jay), 1865-1925
Format:	Government Document Microfilm Book
Language:	English
Published:	Washington : U.S. GPO, 1915.
Series:	Bulletin (United States. Bureau of Mines) ; 89.
Subjects:	Coal mines and mining. Gases. Heat.

Economic methods of utilizing western lignites / by Babcock, E. J. (Earle Jay), 1865-1925

Published 1915

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Government Document Book