TY  - RPRT
TI  - Quality-assurance design applied to an assessment of agricultural pesticides in ground water from carbonate bedrock aquifers in the Great Valley of eastern Pennsylvania
AU  - Kevin J. Breen
PY  - 2000
DO  - 10.3133/wri004104
UR  - https://pubs.usgs.gov/publication/wri004104
ID  - wri004104
ER  -