TY  - RPRT
TI  - Potentiometric surface of the upper Patapsco Aquifer in southern Maryland, September 1993
AU  - Stephen E. Curtin
AU  - Frederick K. Mack
AU  - D. C. Andreasen
PY  - 1994
DO  - 10.3133/ofr94392
UR  - https://pubs.usgs.gov/publication/ofr94392
ID  - ofr94392
ER  -