TY  - RPRT
TI  - Land use and land cover, 1974-76, Baltimore, Maryland; Pennsylvania; Virginia; West Virginia
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1981
DO  - 10.3133/l113
UR  - https://pubs.usgs.gov/publication/l113
ID  - l113
ER  -