Economic geology of the Beaver Quadrangle, Pennsylvania
Subtitle: (southern Beaver and northwestern Allegheny counties)
By: by Lester H. Woolsey.
Publisher: Govt. print. off.
Published: 1906
Place of publication: Washington
Language: eng
Number of pages: 132
Subjects: Mines and mineral resources -- Pennsylvania -- Beaver County.; Mines and mineral resources -- Pennsylvania -- Allegheny County.
Notes: Subject series : A. Economic geology, 74.  B. Descriptive geology, 93.
Issued also as House doc. no. 834, 59th Cong., 2d session.