TY  - RPRT
TI  - Using a Geographic Information System to determine the relation between stream quality and geology in the Roberts Creek watershed, Clayton County, Iowa
AU  - Stephen J. Kalkhoff
PY  - 2007
DO  - 10.1111/j.1752-1688.1993.tb03261.x
UR  - https://pubs.usgs.gov/publication/70169045
ID  - 70169045
ER  -