TY  - RPRT
TI  - Maps showing Quaternary geology of the northern Virginia part of the Chesapeake Bay
AU  - Steven M. Colman
AU  - C. H. Hobbs
PY  - 1989
DO  - 10.3133/mf1948b
UR  - https://pubs.usgs.gov/publication/mf1948B
ID  - mf1948B
ER  -