Title: Coal geology of northern Appalachians : field trip guidebook in conjunction with the Ninth International Congress of Carboniferous Stratigraphy and Geology, May 10-May 16, 1979 /
Authors: Donahue, Jack, 1938-; Rollins, Harold B., 1939-; University of Pittsburgh.; Pittsburgh Geological Society.
Publisher: The Dept. ; American Geological Institute [distributor],
Year: 1979
Subjects: Geology, Stratigraphic; Geology Appalachian Mountains Guidebooks.; Coal Geology Appalachian Mountains Guidebooks.