TY  - RPRT
TI  - Pre-1980 tephra-fall deposits erupted from Mount St. Helens, Washington
AU  - Donal R. Mullineaux
PY  - 1996
DO  - 10.3133/pp1563
UR  - https://pubs.usgs.gov/publication/pp1563
ID  - pp1563
ER  -