The Shawangunk Formation (Upper Ordovician(?) to Middle Silurian) in eastern Pennsylvania /

Bibliographic Details
Main Authors:	Epstein, Jack Burton, 1935-, Epstein, Anita G., 1937- (Author)
Corporate Author:	Pennsylvania. Bureau of Topographic and Geologic Survey
Format:	Government Document Book
Language:	English
Published:	Washington : U.S. Govt. Print. Off, 1972.
Series:	Geological Survey professional paper ; 744.
Subjects:	Geology, Stratigraphic > Silurian. Geology, Stratigraphic > Ordovician. Geology > Pennsylvania.

Evans: US Documents (Annex 5th floor)