TY  - RPRT
TI  - Evaluation of trends in pH in the Yampa River, northwestern Colorado, 1950-2000
AU  - Daniel T. Chafin
PY  - 2002
DO  - 10.3133/wri024038
UR  - https://pubs.usgs.gov/publication/wri024038
ID  - wri024038
ER  -