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100   $a20110718d2010      ua             0
101 0 $aeng
135   $aurmn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aNextGen Air Transportation System$b[electronic resource] $eFAA's metrics can be used to report on status of individual programs, but not of overall NextGen implementation or outcomes : report to congressional committees
210  1$a[Washington, D.C.] :$cU.S. Govt. Accountability Office,$d[2010]
215   $a1 online resource (ii, 41 pages) $cillustrations, map
300   $aTitle from PDF title screen (GAO, viewed July 14, 2011).
300   $a"July 2010."
300   $a"GAO-10-629."
320   $aIncludes bibliographical references.
517   $aNextGen Air Transportation System 
606   $aAir traffic control$zUnited States$xPlanning
606   $aAeronautics, Commercial$zUnited States
606   $aAeronautics and state$zUnited States
615  0$aAir traffic control$xPlanning.
615  0$aAeronautics, Commercial
615  0$aAeronautics and state
801  0$bGPO
801  1$bGPO
906   $aBOOK
912   $a9910700744403321
996   $aNextGen Air Transportation System$93436934
997   $aUNINA