TY  - RPRT
TI  - Geology of the Upperville 7.5-minute quadrangle, Fauquier and Loudoun counties, Virginia
AU  - A. E. Nelson
PY  - 1997
DO  - 10.3133/ofr97708
UR  - https://pubs.usgs.gov/publication/ofr97708
ID  - ofr97708
ER  -