TY  - RPRT
TI  - U.S. Geological Survey: earth science in the public service
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1991
DO  - 10.3133/7000103
UR  - https://pubs.usgs.gov/publication/7000103
ID  - 7000103
ER  -