TY  - RPRT
TI  - Principal facts for gravity stations in part of the central Virginia Piedmont
AU  - Stephen L. Snyder
AU  - D. L. Daniels
AU  - K. R. Bond
AU  - J.M. Russell
AU  - F. E. Riggle
PY  - 1983
DO  - 10.3133/ofr8370
UR  - https://pubs.usgs.gov/publication/ofr8370
ID  - ofr8370
ER  -