Analyses of the coals of Ohio / by J.A. Bownocker and Ethel S. Dean.
Material type:
TextSeries: Bulletin (Geological Survey of Ohio) ; no. 34.Publication details: Columbus, Ohio : Geological Survey of Ohio, 1929 Description: 360 p. : ill., maps ; 25 cmSubject(s): LOC classification: - QE151 .A18 no. 34
Some maps are folded.
Includes index.
Ohio coal supply and its exhaustion / Frank A. Ray.
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