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100   $a20180116d1962      ua             0
101 0 $aeng
135   $aurbn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 12$aA national network of hydrological benchmarks$hPart B /$fby Luna B. Leopold
210  1$aWashington :$cUnited States Department of the Interior, Geological Survey,$d1962.
215   $a1 online resource (4 pages) $cillustrations
225 1 $aGeological Survey circular ;$v460-B
225 1 $aConservation networks
320   $aIncludes bibliographical references.
606   $aHydrology$xResearch$zUnited States
606   $aHydrology$xResearch$2fast
607   $aUnited States$2fast
615  0$aHydrology$xResearch
615  7$aHydrology$xResearch.
700   $aLeopold$b Luna B$g(Luna Bergere),$f1915-2006,$01392408
712 02$aGeological Survey (U.S.),
801  0$bOCLCE
801  1$bOCLCE
801  2$bCOP
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801  2$bOCLCQ
801  2$bGPO
906   $aBOOK
912   $a9910711569803321
996   $aA national network of hydrological benchmarks$93502156
997   $aUNINA