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035   $a(OCoLC)517962091
035   $a(EXLCZ)995470000002382818
100   $a20100217d2009      ua             0
101 0 $aeng
135   $aurcn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aSurficial geology of the floor of Lake Mead (Arizona and Nevada) as defined by sidescan-sonar imagery, lake-floor topography, and post-impoundment sediment thickness$b[electronic resource] /$fby D.C. Twichell and V.A.Cross
210  1$a[Reston, Va.] :$cU.S. Dept. of the Interior, U.S. Geological Survey,$d2009.
215   $a1 online resource $ccolor illustrations, color maps
225 1 $aU.S. Geological Survey open-file report ;$v2009-1150
300   $aTitle from HTML index page (viewed Feb. 17, 2010).
320   $aIncludes bibliographical references.
410  0$aU.S. Geological Survey open-file report ;$v2009-1150.
517   $aSurficial geology of the floor of Lake Mead 
606   $aGeology$zMead, Lake (Ariz. and Nev.)
606   $aLake sediments$zMead, Lake (Ariz. and Nev.)
606   $aReservoir sedimentation$zMead, Lake (Ariz. and Nev.)
615  0$aGeology
615  0$aLake sediments
615  0$aReservoir sedimentation
700   $aTwichell$b David C$01399482
701   $aCross$b VeeAnn$01390375
712 02$aGeological Survey (U.S.)
801  0$bGPO
801  1$bGPO
906   $aBOOK
912   $a9910696806803321
996   $aSurficial geology of the floor of Lake Mead (Arizona and Nevada) as defined by sidescan-sonar imagery, lake-floor topography, and post-impoundment sediment thickness$93464718
997   $aUNINA