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001 9910690917203321
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035   $a(EXLCZ)995470000002343175
100   $a20001229d2000      ua             0
101 0 $aeng
135   $aurcn||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 02$aA simple device for measuring differences in hydraulic head between surface water and shallow ground water$b[electronic resource]
210  1$a[Reston, Va.] :$cU.S. Dept. of the Interior, U.S. Geological Survey,$d[2000]
225 1 $aUSGS fact sheet ;$vFS-077-00
300   $aTitle from title screen (viewed on Apr. 28, 2004).
300   $a"June 2000"
320   $aIncludes bibliographical references.
606   $aHydraulic measurements
606   $aHydraulics$xInstruments
606   $aPressure gages
615  0$aHydraulic measurements.
615  0$aHydraulics$xInstruments.
615  0$aPressure gages.
712 02$aGeological Survey (U.S.)
801  0$bGIS
801  1$bGIS
801  2$bOCLCQ
801  2$bGPO
906   $aBOOK
912   $a9910690917203321
996   $aA simple device for measuring differences in hydraulic head between surface water and shallow ground water$93430065
997   $aUNINA