Economic geology of the Amity quadrangle, eastern Washington County, Pennsylvania
By: by Frederick G. Clapp.
Series: U.S. Geological survey. Buletin; no. 300
Publisher: Govt. Print. Off.
Published: 1907
Place of publication: Washington
Language: eng
Number of pages: 145
Subjects: Mines and mineral resources -- Pennsylvania -- Washington County.; Geology -- Pennsylvania -- Washington County.
Notes: Bibliography: p. 140.
Subject series: A, Economic geology, 86; B, Descriptive geology, 105.
Issued also as House doc. no. 53, 59th Cong., 2d sess.
Includes index.