TY  - RPRT
TI  - Water-resources activities of the U.S. Geological Survey in Montana, October 1987 through September 1989
AU  - J. N. Thamke
PY  - 1989
DO  - 10.3133/ofr89591
UR  - https://pubs.usgs.gov/publication/ofr89591
ID  - ofr89591
ER  -