LEADER 01801oem  2200541   450 
001 9910713751603321
005 20200731123352.0
035   $a(CKB)5470000002504168
035   $a(OCoLC)966435382
035   $a(EXLCZ)995470000002504168
100   $a20161219d1990      ua              
101 0 $aeng
120   $aa||||||||||||
121   $a|||||||||
124   $bd
135   $aurbn|||||||||
181   $ccri$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 14$aThe difference between the potentiometric surfaces of the Aquia aquifer of September 1986 and September 1988 in southern Maryland /$fFrederick K. Mack [and three others]
210  1$aTowson, Maryland :$cDepartment of the Interior, U.S. Geological Survey,$d1990.
215   $a1 online resource (1 map)
225 1 $aWater-resources investigations report ;$v90-4039
300   $a"Prepared in cooperation with Maryland Geological Survey and Maryland Tidewater Administration."
606   $aAquifers$zMaryland$vMaps
606   $aGroundwater$zMaryland$vMaps
606   $aAquifers$2fast
606   $aGroundwater$2fast
607   $aMaryland$2fast
608   $aMaps.$2fast
608   $aMaps.$2lcgft
615  0$aAquifers
615  0$aGroundwater
615  7$aAquifers.
615  7$aGroundwater.
702   $aMack$b Frederick K.
712 02$aMaryland.$bTidewater Administration.
712 02$aMaryland Geological Survey.
801  0$bCOP
801  1$bCOP
801  2$bOCLCO
801  2$bOCLCF
801  2$bOCLCA
801  2$bGPO
906   $aBOOK
912   $a9910713751603321
996   $aThe difference between the potentiometric surfaces of the Aquia aquifer of September 1986 and September 1988 in southern Maryland$93497316
997   $aUNINA