Some effects of recent volcanic ash falls : with especial reference to Alaska /
Wilcox, Ray E.(Ray Everett),1912-
United States.Army.Corps of Engineers.
Washington, [D.C.] : U.S. G.P.O.,
1959.
"Prepared in cooperation with the Office, Chief of Engineers, U. S. Army."
Includes index.
Bibliography: p. 470-474.
Volcanic ash, tuff, etc.