TY  - RPRT
TI  - Potentiometric surface of the upper Patapsco aquifer in southern Maryland, September 1999
AU  - Stephen E. Curtin
AU  - David C. Andreasen
AU  - Judith C. Wheeler
PY  - 2001
DO  - 10.3133/ofr01208
UR  - https://pubs.usgs.gov/publication/ofr01208
ID  - ofr01208
ER  -