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001 9910697627103321
005 20081020133507.0
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100   $a20081020d1988      ua             0
101 0 $aeng
135   $aurmn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aAirworthiness approval of Vertical Navigation (VNAV) Systems for use in the U.S. National Airspace System (NAS) and Alaska$b[electronic resource]
210  1$a[Washington, D.C.] :$cU.S. Dept. of Transportation, Federal Aviation Administration,$d[1988]
215   $a1 volume (various pagings) $cdigital, PDF file
225 1 $aAdvisory circular ;$vAC no. 20-129
300   $a"9/12/88."
300   $aTitle from PDF file caption (viewed Oct. 20, 2008).
517   $aAirworthiness approval of Vertical Navigation 
606   $aAirplanes$xElectronic equipment$xCertification$zUnited States
606   $aAirworthiness certificates$zUnited States
615  0$aAirplanes$xElectronic equipment$xCertification
615  0$aAirworthiness certificates
801  0$bGPO
801  1$bGPO
801  2$bGPO
906   $aBOOK
912   $a9910697627103321
996   $aAirworthiness approval of Vertical Navigation (VNAV) Systems for use in the U.S. National Airspace System (NAS) and Alaska$93138363
997   $aUNINA