01773nam a2200457 a 4500102386215MiAaHDL20180514000000.0m d cr bn ---auaua991014s1999 vauab f000 0 eng dsdr-ucsd.b40814348DGPODGPODLCMvIOCoLCUtOrBLWn-us-md0621-L (online)0621-LI 19.127:021-99(OCoLC)42641376Maryland[Reston, Va.?] :U.S. Dept. of the Interior, U.S. Geological Survey,[1999]4 unnumbered pages :color illustrations, color maps ;28 cmtexttxtrdacontentunmediatednrdamediavolumencrdacarrierUSGS fact sheet ;021-99"August 1999"--P. [1]Caption titleAlso available via Internet from the USGS web site. Address as of 10/20/99: http://water.usgs.gov/pubs/FS/FS-021-99/;current access is available via PURLMode of access: Internet.WaterPollutionMarylandHydrogeological surveysMarylandWater qualityMarylandNutrient pollution of waterMarylandGeological Survey (U.S.)Open access resource; selected by the UC San Diego Library.U.S. online monographs10238621520150120171419.020180514000000.020180515090729.02024-05-03T17:43:58Z2024-05-03T17:30:02ZSDR-UCSDIII - MILLENIUMprepare.pl-004-007BKsdr-ucsd.b40814348uc1SDRUCSDuc1.31822024325060UC.b40814348UCUCSD20240503googleuc1.318220243250601999pdbibUS fed doc