TY  - RPRT
TI  - Documentation of geographic-information-system coverages and data-input files used for analysis of the geohydrology of the Virginia Coastal Plain
AU  - M. J. Focazio
AU  - T. B. Samsel
PY  - 1993
DO  - 10.3133/wri934015
UR  - https://pubs.usgs.gov/publication/wri934015
ID  - wri934015
ER  -