Coal resources of the lower part of the Allegheny formation in Ohio.

Bibliographic Details
Main Author:	DeLong, Richard M.
Format:	Book
Language:	English
Published:	Columbus, [publisher not identified] ; 1957.
Series:	Report of investigations (Ohio. Division of Geological Survey) ; no. 31.
Subjects:	Coal mines and mining > Ohio.

Description
Physical Description:	v, 43 pages : illustrations
Bibliography:	Bibliography: page 43.