TY  - RPRT
TI  - Ground-water resources in the Libby area, northwestern Montana
AU  - Arnold J. Boettcher
AU  - Kathleen R. Wilke
PY  - 1977
DO  - 10.3133/ofr77397
UR  - https://pubs.usgs.gov/publication/ofr77397
ID  - ofr77397
ER  -