Relation of Silurian reefs to Ordovician structure in the Patoka oil area.

Bibliographic Details
Main Author:	Smoot, Thomas William
Format:	Book
Language:	English
Published:	Urbana, [publisher not identified] ; 1958.
Series:	Circular (Illinois State Geological Survey) ; 258.
Subjects:	Petroleum > Illinois. Geology, Stratigraphic > Ordovician.

Description
Physical Description:	20 pages : illustrations, maps.
Bibliography:	Bibliography: page 20.