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100   $a20081229d2008      ua             0
101 0 $aeng
135   $aurbn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aNASA at 50$b[electronic resource] $epast accomplishments and future opportunities and challenges : hearing before the Committee on Science and Technology, House of Representatives, One Hundred Tenth Congress, second session, July 30, 2008
210  1$aWashington :$cU.S. G.P.O.,$d2008.
215   $aiii, 59 pages $cdigital, PDF file
300   $aTitle from title screen (viewed on Dec. 29, 2008).
300   $a"Serial no. 110-118."
517   $aNASA at 50 
606   $aAstronautics$zUnited States
606   $aAeronautics$zUnited States
607   $aOuter space$xExploration
615  0$aAstronautics
615  0$aAeronautics
801  0$bGPO
801  1$bGPO
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906   $aBOOK
912   $a9910697802703321
996   $aNASA at 50$93474321
997   $aUNINA