Guide to the geology of Cornwall, Pennsylvania
By: by Carlyle Gray [and] Davis M. Lapham.
Contributors: Lapham, Davis M., joint author
Publisher: Dept. of Internal Affairs, Topographic and Geologic Survey
Published: 1961
Place of publication: [Harrisburg]
Language: eng
Number of pages: 18
Subjects: Geology -- Pennsylvania -- Lebanon County; Geology, Stratigraphic; Mines and mineral resources -- Pennsylvania -- Cornwall
Notes: Bibliography: p. 16.
Part of the illustrative matter folded in pocket.