The Precambrian in the subsurface of northwestern Pennsylvania and adjoining areas
By: by Timothy E. Saylor.
Series: Commonwealth of Pennsylvania. Bureau of Topographic and Geologic Survey. Information circular 62; [Pennsylvania. Topographic and Geologic Survey] Bulletin IC 62
Publisher: Pennsylvania Geological Survey
Published: 1968
Place of publication: Harrisburg
Language: eng
Number of pages: 25
Subjects: Geology, Stratigraphic -- Precambrian.; Geology -- Pennsylvanian.; Geology -- Ohio.
Notes: Bibliography: p. 21.
"Pennsylvania Geological Survey, fourth series."