TY - MON AU - Hays, Walter W ED - Geological Survey (U.S.) TI - Facing geologic and hydrologic hazards PY - 1981/// CY - [Washington, D.C.] PB - U.S. Dept. of the Interior, Geological Survey KW - Geologia KW - Hidrologia KW - 55 SP - VII, 108 p. A4 - Geological Survey (U.S.) PP - [Washington, D.C.] PB - U.S. Dept. of the Interior, Geological Survey ER -