TY  - RPRT
TI  - Drought-trigger ground-water levels and analysis of historical water-level trends in Chester County, Pennsylvania
AU  - Curtis L. Schreffler
PY  - 1996
DO  - 10.3133/wri974113
UR  - https://pubs.usgs.gov/publication/wri974113
ID  - wri974113
ER  -