TY  - RPRT
TI  - United States Geological Survey, programs in Maryland and the District of Columbia
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1994
DO  - 10.3133/fs02095
UR  - https://pubs.usgs.gov/publication/fs02095
ID  - fs02095
ER  -