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100   $a20070427d2007      ua             0
101 0 $aeng
135   $aurmn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aCritical infrastructure$b[electronic resource] $echallenges remain in protecting key sectors : testimony before the Subcommittee on Homeland Security, Committee on Appropriations, House of Representatives /$fstatement of Eileen R. Larence, David A. Powner
210  1$a[Washington, D.C.] :$cU.S. Govt. Accountability Office,$d[2007]
215   $a26 pages $cdigital, PDF file
225 1 $aTestimony ;$vGAO-07-626 T
300   $aTitle from title screen (viewed on Apr. 26, 2007).
300   $a"For release ... March 20, 2007."
300   $aPaper version available from: U.S. Govt. Accountability Office, 441 G St., NW, Rm. LM, Washington, D.C. 20548.
320   $aIncludes bibliographical references.
517   $aCritical infrastructure 
606   $aComputer crimes$zUnited States$xPrevention
606   $aComputer security$zUnited States$xEvaluation
606   $aComputers$xAccess control$zUnited States
606   $aInformation technology$xSecurity measures$zUnited States
615  0$aComputer crimes$xPrevention.
615  0$aComputer security$xEvaluation.
615  0$aComputers$xAccess control
615  0$aInformation technology$xSecurity measures
700   $aLarence$b Eileen Regen$01384443
701   $aPowner$b David A$01380634
712 02$aUnited States.$bCongress.$bHouse.$bCommittee on Appropriations.$bSubcommittee on Homeland Security.
712 02$aUnited States.$bGovernment Accountability Office.
801  0$bGPO
801  1$bGPO
906   $aBOOK
912   $a9910695711603321
996   $aCritical infrastructure$93500139
997   $aUNINA