Analyses of the coals of Ohio
By: by J.A. Bownocker and Ethel S. Dean.
Contributors: Dean, Ethel S.; Ray, Franklin A. 1862-1938.
Series: Bulletin ;; no. 34; Bulletin (Geological Survey of Ohio) ;; no. 34.
Publisher: Geological Survey of Ohio
Published: 1929
Place of publication: Columbus, Ohio
Language: eng
Number of pages: 360
Subjects: Coal -- Ohio.
Notes: Some maps are folded.
Includes index.