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100   $a20101113d2001      ua             0
101 0 $aeng
135   $aurmn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aGeohydrology and limnology of Walden Pond, Concord, Massachusetts /$fby John A. Colman and Paul J. Friesz ; prepared in cooperation with the Massachusetts Department of Environmental Management
210  1$aNorthborough, Massachusetts :$cU.S. Department of the Interior, U.S. Geological Survey,$d2001.
215   $a1 online resource (v, 61 pages) $cillustrations (some color), color maps
225 1 $aWater-resources investigations report ;$v01-4137
320   $aIncludes bibliographical references (pages 56-58).
606   $aHydrogeology$zMassachusetts$zWalden Pond (Middlesex County)
606   $aLimnology$zMassachusetts$zWalden Pond (Middlesex County)
606   $aEcology$2fast
606   $aHydrogeology$2fast
606   $aLimnology$2fast
607   $aWalden Pond (Middlesex County, Mass.)$xEnvironmental conditions
607   $aMassachusetts$zWalden Pond (Middlesex County)$2fast
615  0$aHydrogeology
615  0$aLimnology
615  7$aEcology.
615  7$aHydrogeology.
615  7$aLimnology.
700   $aColman$b John A.$0270774
702   $aFriesz$b Paul J.
712 02$aGeological Survey (U.S.),
712 02$aMassachusetts.$bDepartment of Environmental Management.
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906   $aBOOK
912   $a9910716820803321
996   $aGeohydrology and limnology of Walden Pond, Concord, Massachusetts$93471729
997   $aUNINA