Geology of Unalaska Island and adjacent insular shelf, Aleutian Islands, Alaska
Geological Survey bulletin ;
Investigations of Alaskan volcanoes
Investigations of Alaskan volcanoes.
Drewes, Harald, 1927-2015.
Fraser, George D. (George Dewitt), 1920-
Snyder, George L. (George Leonard), 1927-
Barnett, H. Frank, 1921-
Geological Survey (U.S.)
United States. Army. Corps of Engineers.
by Harald Drewes, G.D. Fraser, G.L. Snyder, and H.F. Barnett, Jr.