TY  - RPRT
TI  - Geologic map of the Poolesville quadrangle, Frederick and Montgomery Counties, Maryland, and Loudoun County, Virginia
AU  - Scott Southworth
PY  - 1998
DO  - 10.3133/gq1761
UR  - https://pubs.usgs.gov/publication/gq1761
ID  - gq1761
ER  -