TY  - RPRT
TI  - Methods and sources of data used to develop selected water-quality indicators for streams and ground water for EPA's 2007 Report on the Environment: Science report
AU  - Nancy T. Baker
AU  - John T. Wilson
AU  - Michael J. Moran
PY  - 2008
DO  - 10.3133/ofr20081096
UR  - https://pubs.usgs.gov/publication/ofr20081096
ID  - ofr20081096
ER  -