TY  - RPRT
TI  - Preliminary determination of epicenters monthly listing July-September 1989
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1990
DO  - 10.3133/ofr89600c
UR  - https://pubs.usgs.gov/publication/ofr89600C
ID  - ofr89600C
ER  -