TY  - RPRT
TI  - Preliminary integrated geologic map databases for the United States: Delaware, Maryland, New York, Pennsylvania, and Virginia
AU  - Connie L. Dicken
AU  - Suzanne W. Nicholson
AU  - John D. Horton
AU  - Scott A. Kinney
AU  - Gregory L. Gunther
AU  - Michael P. Foose
AU  - Julia A. L. Mueller
PY  - 2005
DO  - 10.3133/ofr20051325
UR  - https://pubs.usgs.gov/publication/ofr20051325
ID  - ofr20051325
ER  -