Age of the Springville shale (Mississippian) of Southern Illinois /

Bibliographic Details
Main Author:	Collinson, Charles William
Other Authors:	Scott, Alan Johnson
Format:	Book
Language:	English
Published:	Urbana, [publisher not identified] ; 1958.
Series:	Circular (Illinois State Geological Survey) ; 254.
Subjects:	Shale > Illinois. Geology, Stratigraphic > Mississippian. Geology > Illinois. Paleontology > Illinois.

Description
Physical Description:	12 pages : illustrations, map.
Bibliography:	Bibliography: page 12.