TY  - RPRT
TI  - Preliminary analysis for trends in selected water-quality characteristics, Powder River, Montana and Wyoming, water years 1952-85
AU  - L. E. Cary
PY  - 1989
DO  - 10.3133/wri894050
UR  - https://pubs.usgs.gov/publication/wri894050
ID  - wri894050
ER  -