TY  - RPRT
TI  - Potentiometric surface of the upper Patapsco Aquifer in southern Maryland, September 1998
AU  - Stephen E. Curtin
AU  - David C. Andreasen
AU  - Frederick K. Mack
PY  - 2000
DO  - 10.3133/ofr0085
UR  - https://pubs.usgs.gov/publication/ofr0085
ID  - ofr0085
ER  -