Geology of Unalaska Island and Adjacent Insular Shelf, Aleutian Islands, Alaska
Geological Survey (U.S.), Willis Howard Nelson, Ray Everett Wilcox, Harald Drewes, Robert Roy Coats, Howard A. Powers, Howard Hamilton Waldron, Olcott Gates, Richard Quintin Lewis, George Dewitt Fraser, George Leonard Snyder, H. Frank Barnett
