@misc{indiciae4d1e61b117a7, title = {Program and plans of the U.S. Geological Survey for producing information needed in National Seismic hazards and risk assessment, fiscal years 1980-84}, author = {Walter W. Hays}, year = {1979}, doi = {10.3133/cir816}, url = {https://pubs.usgs.gov/publication/cir816}, note = {Source identifier: cir816} }