TY  - RPRT
TI  - Monitoring volcanoes; techniques and strategies used by the staff of the Cascades Volcano Observatory, 1980-90
AU  - John W. Ewert
AU  - Donald A. Swanson
PY  - 1992
DO  - 10.3133/b1966_1992
UR  - https://pubs.usgs.gov/publication/b1966_1992
ID  - b1966_1992
ER  -