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The Development of Coal Mining

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/34130

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Title: The Development of Coal Mining
Creators: Nold, H. E. (Henry Ellsworth), 1883-1967
Issue Date: 1921-05
Publisher: Ohio State University, College of Engineering
Citation: Ohio State Engineer, vol. 4, no. 4 (May, 1921), 10-11.
URI: http://hdl.handle.net/1811/34130
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