TY  - RPRT
TI  - Preliminary geologic map of the Winchester 30 x 60 Minute Quadrangle, West Virginia, Virginia, and Maryland
AU  - R. C. McDowell
PY  - 1991
DO  - 10.3133/ofr9122
UR  - https://pubs.usgs.gov/publication/ofr9122
ID  - ofr9122
ER  -