TY  - RPRT
TI  - Maps showing Quaternary geology of the northern Maryland part of the Chesapeake Bay
AU  - Steven M. Colman
AU  - J.P. Halka
PY  - 1989
DO  - 10.3133/mf1948d
UR  - https://pubs.usgs.gov/publication/mf1948D
ID  - mf1948D
ER  -