TY  - RPRT
TI  - Geologic map of the Middletown quadrangle, Frederick, Shenandoah, and Warren Counties, Virginia
AU  - Randall C. Orndorff
AU  - Jack Burton Epstein
AU  - Robert C. McDowell
PY  - 1999
DO  - 10.3133/gq1803
UR  - https://pubs.usgs.gov/publication/gq1803
ID  - gq1803
ER  -