TY  - RPRT
TI  - Methodology for river-quality assessment with application to the Willamette River basin, Oregon
AU  - David A. Rickert
AU  - Walter G. Hines
AU  - Stuart W. McKenzie
PY  - 1976
DO  - 10.3133/cir715m
UR  - https://pubs.usgs.gov/publication/cir715M
ID  - cir715M
ER  -