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035   $a(OCoLC)754209833
035   $a(EXLCZ)993830000000000343
100   $a20110923d2010      ua             0
101 0 $aeng
135   $aurmn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aWhen biospheres collide $ea history of NASA's planetary protection programs$b[electronic resource] /$fby Michael Meltzer
210  1$aWashington, D.C. :$cNASA Aeronautics and Space Administration,$d2010.
215   $a1 online resource (xx, 522 pages) $cillustrations
225 1 $aNASA SP ;$v2011-4234
300   $aTitle from title screen (viewed on Sept. 23, 2011).
300   $aPaper version available for sale by the Supt. of Docs., U.S. G.P.O.
320   $aIncludes bibliographical references and index.
517   $aWhen Biospheres Collide
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.
700   $aMeltzer$b Michael$f1946-$01168265
801  0$bGPO
801  1$bGPO
801  2$bGPO
906   $aBOOK
912   $a996320179703316
996   $aWhen biospheres collide$92720773
997   $aUNISA