U.S. Govt. Print. Off. ; For sale by the Distribution Branch, U.S. Geological Survey,
Johnstown-western Pennsylvania storm and floods of July 19-20, 1977
Geological Survey professional paper ;
Geological Survey (U.S.)
Hoxit, Lee R.
United States. National Oceanic and Atmospheric Administration.
Geological Survey (U.S.), issuing body.
by L. Ray Hoxit [and others] ; report prepared jointly by the U.S. Geological Survey and the National Oceanic and Atmospheric Administration.
Johnstown-western Pennsylvania storm and floods of July 19-20, 1977