Symposium on Middle and Upper Devonian stratigraphy of Pennsylvania and adjacent states.
By: Vincent C. Shepps, editor.
Series: Pennsylvania. Bureau of Topographic and Geologic Survey. Bulletin G39; Bulletin G,; 39.
Publisher: [Available from the Bureau of Publications, Dept. of Property and Supplies]
Published: 1963
Place of publication: Harrisburg
Language: eng
Number of pages: 301
Subjects: Geology, Stratigraphic -- Devonian.; Geology -- Appalachian Mountains.
Notes: Includes bibliographies.
At head of title: Pennsylvania Geological Survey, Fourth series.
On cover: General geology report.