TY  - RPRT
TI  - Water resources data for Maryland and Delaware, water year 1981
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1982
DO  - 10.3133/wdrmdde811
UR  - https://pubs.usgs.gov/publication/wdrMDDE811
ID  - wdrMDDE811
ER  -