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100   $a20170605h20122012  uy             0
101 0 $aeng
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181   $2rdacontent
182   $2rdamedia
183   $2rdacarrier
200 10$aWhen biospheres collide $ea history of NASA's planetary protection programs /$fby Michael Meltzer
210  1$a[Place of publication not identified] :$cNASA,$d[2012]
210  4$dİ[2012]
215   $a1 online resource (426 pages) $cillustrations (some color)
225 1 $aNASA History Series
311   $a0-16-085327-3 
320   $aIncludes bibliographical references at the end of each chapters and index.
410  0$aNASA history series.
606   $aSpace pollution
606   $aSpace environment
606   $aEnvironmental protection$xMoral and ethical aspects
607   $aOuter space$xExploration$xEnvironmental aspects
615  0$aSpace pollution.
615  0$aSpace environment.
615  0$aEnvironmental protection$xMoral and ethical aspects.
676   $a363.739
700   $aMeltzer$b Michael$f1946-$01168265
801  0$bMiAaPQ
801  1$bMiAaPQ
801  2$bMiAaPQ
906   $aBOOK
912   $a9910792998403321
996   $aWhen biospheres collide$92720773
997   $aUNINA