TY  - RPRT
TI  - Occurrence of pesticide residues in four streams draining different land-use areas in Pennsylvania
AU  - John F. Truhlar
AU  - Lloyd A. Reed
PY  - 1975
DO  - 10.3133/wri756
UR  - https://pubs.usgs.gov/publication/wri756
ID  - wri756
ER  -