TY - RPRT TI - Water resources data Maryland, Delaware, and Washington, D.C., water year 2003, volume 2. ground-water data AU - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey PY - 2004 DO - 10.3133/wdrmddedc032 UR - https://pubs.usgs.gov/publication/wdrMDDEDC032 ID - wdrMDDEDC032 ER -