TY  - RPRT
TI  - Preliminary determination of epicenters; monthly listing; October-December 1999
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1999
DO  - 10.3133/ofr99600d
UR  - https://pubs.usgs.gov/publication/ofr99600D
ID  - ofr99600D
ER  -