Coal
By: by Douglas L. Crowell
Contributors: Ohio. Division of Geological Survey
Edition: Rev
Series: Educational leaflet -- no. 8; Educational leaflet (Ohio. Division of Geological Survey) -- no. 8
Publisher: Division of Geological Survey
Published: 1998
Place of publication: [Columbus, Ohio]
Language: eng
Number of pages: 20
Subjects: Coal mines and mining -- Ohio; Coal
Notes: Title from p. [1]

"Publication date: 5/98"--p. [20]

Includes bibliographical references