TY  - RPRT
TI  - Concentrations and annual fluxes for selected water-quality constituents from the USGS National Stream Quality Accounting Network (NASQAN) 1996-2000
AU  - Valerie J. Kelly
AU  - Richard P. Hooper
AU  - Brent T. Aulenbach
AU  - Mary Janet
PY  - 2001
DO  - 10.3133/wri014255
UR  - https://pubs.usgs.gov/publication/wri014255
ID  - wri014255
ER  -