Middle Devonian stratigraphy in central Pennsylvania : a revision /

Bibliographic Details
Main Author:	Faill, Rodger T.
Other Authors:	Hoskins, Donald M., Wells, Richard B.
Format:	Book
Language:	English
Published:	Harrisburg : Pennsylvania Geological Survey, 1978.
Series:	General geology report ; 70.
Subjects:	Geology, Stratigraphic > Devonian. Geology > Pennsylvania.