TY  - RPRT
TI  - Water-resources investigations of the U.S. Geological Survey in Montana, October 1980 through September 1981
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1981
DO  - 10.3133/ofr81817
UR  - https://pubs.usgs.gov/publication/ofr81817
ID  - ofr81817
ER  -