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100   $a20170607d1991      ua             0
101 0 $aeng
135   $aurbn||||a||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aHydrology of the Texas Gulf Coast aquifer systems /$fby Paul D. Ryder and Ann F. Ardis
210  1$aAustin, Texas :$cU.S. Department of the Interior, U.S. Geological Survey,$d1991.
215   $a1 online resource (168 unnumbered pages) $cillustrations
225 1 $aRegional aquifer-system analysis
225 1 $aOpen-file report ;$v91-64
320   $aIncludes bibliographical references (pages 28-32).
606   $aHydrology$zTexas
606   $aHydrology$2fast
607   $aTexas$2fast
615  0$aHydrology
615  7$aHydrology.
700   $aRyder$b Paul D.$01394244
702   $aArdis$b Ann F.
712 02$aGeological Survey (U.S.),
801  0$bGPO
801  1$bGPO
801  2$bGPO
906   $aBOOK
912   $a9910705617203321
996   $aHydrology of the Texas Gulf Coast aquifer systems$93534699
997   $aUNINA