TY  - RPRT
TI  - Evaluation of regional ground-water quality in relation to land use; US Geological Survey Toxic Waste--Ground-Water Contamination Program
AU  - D.R. Helsel
AU  - S.E. Ragone
PY  - 1984
DO  - 10.3133/wri844217
UR  - https://pubs.usgs.gov/publication/wri844217
ID  - wri844217
ER  -