Pennsylvanian correlations in the eastern interior and Appalachian coal fields
By: by Harold R. Wanless.
Series: Geological Society of America. Special papers,; no. 17
Publisher: The Society
Published: 1939
Place of publication: [New York]
Language: eng
Number of pages: 130
Subjects: Geology -- Pennsylvania.; Geology -- United States.
Notes: "Works to which reference is made": p. 113-119.