The Niagaran reefs in Illinois and their relation to oil accumulation.

Bibliographic Details
Main Author:	Lowenstam, Heinz Adolf, 1912-
Format:	Book
Language:	English
Published:	Urbana, [publisher not identified] ; 1949.
Series:	Report of investigations (Illinois State Geological Survey) ; no. 145.
Subjects:	Geology, Stratigraphic > Silurian. Petroleum > Geology > Illinois.

Description
Physical Description:	36 pages : illustrations
Bibliography:	Bibliographical footnotes.