TY  - RPRT
TI  - User's manual for the National Water Information System of the U.S. Geological Survey (USGS), Water-quality System (QWDATA)
AU  - Dorinda Gellenbeck
AU  - Carolyn J. Oblinger
AU  - Donna L. Runkle
AU  - Terry L. Schertz
AU  - Jonathon C. Scott
AU  - Robert L. Taylor
PY  - 2005
DO  - 10.3133/ofr20051081
UR  - https://pubs.usgs.gov/publication/ofr20051081
ID  - ofr20051081
ER  -