The Middle Devonian strata of southern Illinois /

Bibliographic Details
Main Author:	North, William G.
Format:	Book
Language:	English
Published:	Urbana : Illinois State Geological Survey, 1969.
Series:	Circular (Illinois State Geological Survey) ; 441.
Subjects:	Geology, Stratigraphic > Devonian. Geology > Illinois.

Evans: Library Stacks