The Catskill delta / edited by Donald L. Woodrow, William D. Sevon - Boulder, Colorado : The Geological Society of America, 1985 - 246 p. : ill. ; 28 cm. ISBN: 0813722012 LCCN: 85-000946 Subjects--Topical Terms: Geology, Stratigraphic--Devonian--CongressesGeology--Appalachian Region--Congresses