"An outgrowth of a symposium on The Catskill Delta held at the 18th Annual Meeting of the Northeastern Section of the Geological Society of America in...
"An outgrowth of a symposium on The Catskill Delta held at the 18th Annual Meeting of the Northeastern Section of the Geological Society of America in Kiamesha Lake, New York on March 24, 1983"--Pref.