1900. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). U.S. Geological Survey ; Books and Open-File Reports [Section, distributor. English. Public. Maryland, Southern and Patapsco Aquifer.
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1992. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey ; Books and Open-File Reports [Section, distributor. English. Public. Maryland and Patapsco Aquifer.
1993. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). U.S. Geological Survey ; Books and Open-File Reports Section. English. Public. Maryland, Southern and Patapsco Aquifer.
1900. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). U.S. Geological Survey ; Books and Open-File Reports [Section, distributor. English. Public. Maryland, Southern and Patapsco Aquifer.
1992. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey ; Books and Open-File Reports [Section. English. Public. Maryland and Patapsco Aquifer.
1993. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). U.S. Geological Survey ; Books and Open-file Reports Section. English. Public. Maryland, Southern and Patapsco Aquifer.
1995. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). U.S. Geological Survey ; Books and Open-file Reports Section, [distributor. English. Public. Maryland, Southern and Patapsco Aquifer.
1999. 2008-08-07T13:20:36Z. 2008-08-07T13:20:36Z. Curtin, Stephen E. U.S. Geological Survey ; Branch of Information Services [distributor. English. Public. Maryland, Southern and Patapsco Aquifer.
1999. 2008-08-07T13:20:47Z. 2008-08-07T13:20:47Z. Curtin, Stephen E. U.S. Geological Survey ; Branch of Information Services [distributor. English. Public. Maryland, Southern and Patapsco Aquifer.