TY  - RPRT
TI  - Study plan for urban stream indicator sites of the National Water-Quality Assessment Program
AU  - T. J. Lopes
AU  - C. V. Price
PY  - 1997
DO  - 10.3133/ofr9725
UR  - https://pubs.usgs.gov/publication/ofr9725
ID  - ofr9725
ER  -