01600oam 2200433 450 991070735090332120160720111959.0(CKB)5470000002464009(OCoLC)937435840(EXLCZ)99547000000246400920160208d1992 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierMonitoring volcanoes techniques and strategies used by the staff of the Cascades Volcano Observatory, 1980-90 /John W. Ewert and Donald A. Swanson, editors[Reston, Va.] :U.S. Department of the Interior, U.S. Geological Survey,1992.Washington :United States Government Printing Office.1 online resource (iv, 223 pages) illustrations, mapsU.S. Geological Survey bulletin ;1966Title from title screen (viewed July 20, 2016).Includes bibliographical references.Monitoring volcanoes VolcanismResearchUnited StatesMethodologyVolcanismResearchMethodologyfastUnited StatesfastVolcanismResearchMethodology.VolcanismResearchMethodology.Ewert John W.1381958Swanson Donald A(Donald Alan),1938-Geological Survey (U.S.),OCLCEOCLCEGPOBOOK9910707350903321Monitoring volcanoes3464210UNINA