TY  - RPRT
TI  - Potentiometric surface of the lower Patapsco Aquifer in southern Maryland, September 1991
AU  - Stephen E. Curtin
AU  - D. C. Andreasen
AU  - Frederick K. Mack
PY  - 1993
DO  - 10.3133/ofr93655
UR  - https://pubs.usgs.gov/publication/ofr93655
ID  - ofr93655
ER  -