TY  - RPRT
TI  - A benthic-macroinvertebrate index of biotic integrity and assessment of conditions in selected streams in Chester County, Pennsylvania, 1998-2009
AU  - Andrew G. Reif
PY  - 2012
DO  - 10.3133/sir20125116
UR  - https://pubs.usgs.gov/publication/sir20125116
ID  - sir20125116
ER  -