Geology and mineral resources of Bellefonte quadrangle, Pennsylvania.

Bibliographic Details
Corporate Author:	Geological Survey (U.S.)
Format:	Government Document eBook
Language:	English
Published:	[Washington] : [s.n.], 1936.
Subjects:	Geology. Mines and mineral resources. Pennsylvania.
Online Access:	Electronic resource (PDF)

Description
Item Description:	Contains maps, images, and tables.
Physical Description:	1 online resource (128 pages), digital, PDF file