U.S. G.P.O. ; For sale by the U.S. Geological Survey, Information Services,
Lee, Douglas B.
Geological Survey (U.S.)
U. S. Geological Survey water-supply paper ; 2438
Effects of the eruptions of Mount St. Helens on physical, chemical, and biological characteristics of surface water, ground water, and precipitation in the Western United States
Effects of the eruptions of Mount St. Helens on physical, chemical, and biological characteristics of surface water, ground water, and precipitation in the Western United States
Effects of the eruptions of Mount St. Helens on physical, chemical, and biological characteristics of surface water, ground water, and precipitation in the Western United States