TY  - RPRT
TI  - Proceedings of Conference XL; a workshop on The U.S. Geological Survey's role in hazards warnings
AU  - W. W. Hays
PY  - 1987
DO  - 10.3133/ofr87269
UR  - https://pubs.usgs.gov/publication/ofr87269
ID  - ofr87269
ER  -