TY  - RPRT
TI  - Land use series, Wilmington, Delaware, New Jersey, Pennsylvania, Maryland
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1976
DO  - 10.3133/ofr76636
UR  - https://pubs.usgs.gov/publication/ofr76636
ID  - ofr76636
ER  -