| | Book | Requires cookie* | | 1 | Title: | Coal beds of the Conemaugh formation in Ohio
| | | | Creator: | DeBrosse, Theodore A. | | | | | Ohio Division of Geological Survey. | | | | Publication: | Ohio Dept. of Natural Resources, Division of Geological Survey, Columbus,1957. | | | | Notes: | Includes bibliographical references (p. 31-33). | | | | Call #: | F34JQ O79 no.34 | | | | Extent: | vi, 33 p. : ill., maps ; 28 cm. | | | | Subjects: | Coal -- Ohio | Ohio imprints 1957
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| Book | Requires cookie* | | 2 | Title: | Coal resources of the lower part of the Allegheny formation in Ohio
| | | | Creator: | DeLong, Richard M. | | | | | Ohio Division of Geological Survey. | | | | Publication: | Ohio Dept. of Natural Resources, Division of Geological Survey, Columbus,1957. | | | | Notes: | Includes bibliographical references (p. 43). | | | | Call #: | F34JQ O79 no.31 | | | | Extent: | v, 43 p. : ill., maps ; 28 cm. | | | | Subjects: | Coal -- Ohio | Ohio imprints 1957
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