TY  - RPRT
TI  - Chemical quality of ground water in the Culpeper Basin, Virginia and Maryland
AU  - Alex Posner
AU  - Chester Zenone
PY  - 1983
DO  - 10.3133/i1313d
UR  - https://pubs.usgs.gov/publication/i1313D
ID  - i1313D
ER  -