811 | Add to Reading ListSource URL: www.nasa.govLanguage: English - Date: 2013-04-30 20:25:15
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812 | Add to Reading ListSource URL: www.gao.govLanguage: English - Date: 2007-08-28 08:39:53
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813 | Add to Reading ListSource URL: scholar.lib.vt.eduLanguage: English - Date: 2000-04-20 23:14:58
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814 | Add to Reading ListSource URL: history.nasa.govLanguage: English - Date: 2005-02-04 11:00:00
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815 | Add to Reading ListSource URL: www.oosa.unvienna.orgLanguage: English - Date: 2012-08-28 07:57:06
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816 | Add to Reading ListSource URL: www.amacad.orgLanguage: English - Date: 2009-10-15 11:29:14
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817 | Add to Reading ListSource URL: history.nasa.govLanguage: English - Date: 2006-11-13 10:29:42
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818 | Add to Reading ListSource URL: www.whitehouse.govLanguage: English - Date: 2010-03-21 01:53:13
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819 | Add to Reading ListSource URL: www.defense.govLanguage: English - Date: 2011-02-07 15:36:14
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820 | Add to Reading ListSource URL: www1.spa.american.eduLanguage: English - Date: 2006-01-24 16:30:33
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