Monitoring volcanoes techniques and strategies used by the staff of the Cascades Volcano Observatory, 1980-90 - Ewert, John W.; Swanson, Donald A. (Donald Alan) 1938-. (Washington U.S. G.P.O. Denver, CO For sale by Book and Open-File Report Sales, U.S. Geological Survey, 1992)
Includes bibliographical references.
Keywords: Cascades Volcano Observatory; Volcanism -- Research -- United States -- Methodology