TY  - RPRT
TI  - U.S. Geological Survey World Wide Web information
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1997
DO  - 10.3133/fs12196
UR  - https://pubs.usgs.gov/publication/fs12196
ID  - fs12196
ER  -