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035   $a(EXLCZ)995470000002524164
100   $a20111115d1969      ua             0
101 0 $aeng
135   $aur|||||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aRound trip trajectories with stopovers at both Mars and Venus /$fby E.A. Willis, Jr. and J.A. Padrutt
210  1$a[Washington, D.C.] :$cNational Aeronautics and Space Administration,$d1969.
215   $a1 online resource (approximately 11 pages) $cillustrations
225 1 $aNASA/TM ;$vX-52680
320   $aIncludes bibliographical references (page 6).
606   $aSpace trajectories
606   $aInterplanetary voyages
606   $aInterplanetary voyages$2fast
606   $aSpace trajectories$2fast
606   $aTrajectories$2nasat
606   $aMars (planet)$2nasat
606   $aVenus (planet)$2nasat
615  0$aSpace trajectories.
615  0$aInterplanetary voyages.
615  7$aInterplanetary voyages.
615  7$aSpace trajectories.
615  7$aTrajectories.
615  7$aMars (planet)
615  7$aVenus (planet)
700   $aWillis$b Edward A.$01399825
702   $aPadrutt$b J. A.
712 02$aUnited States.$bNational Aeronautics and Space Administration,
801  0$bOCLCE
801  1$bOCLCE
801  2$bOCLCQ
801  2$bOCLCF
801  2$bOCLCO
801  2$bOCLCQ
801  2$bGPO
801  2$bOCLCO
801  2$bOCLCQ
801  2$bOCLCO
801  2$bGPO
906   $aBOOK
912   $a9910716800703321
996   $aRound trip trajectories with stopovers at both Mars and Venus$93512670
997   $aUNINA