TY  - RPRT
TI  - A regional classification scheme for estimating reference water quality in streams using land-use-adjusted spatial regression-tree analysis
AU  - Dale M. Robertson
AU  - D. A. Saad
AU  - D.M. Heisey
PY  - 2005
DO  - 10.1007/s00267-005-0022-8
UR  - https://pubs.usgs.gov/publication/70030934
ID  - 70030934
ER  -