31 | Add to Reading ListSource URL: cdn.americanprogress.orgLanguage: English - Date: 2014-06-04 12:10:46
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32 | Add to Reading ListSource URL: tipton.house.govLanguage: English - Date: 2013-04-25 13:21:10
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33 | Add to Reading ListSource URL: www.mext.go.jpLanguage: English - Date: 2014-08-05 22:46:04
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34 | Add to Reading ListSource URL: www.nvbar.orgLanguage: English - Date: 2013-07-24 17:08:53
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35 | Add to Reading ListSource URL: phys.orgLanguage: English - Date: 2014-10-23 02:12:42
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36 | Add to Reading ListSource URL: barnard.eduLanguage: English - Date: 2011-10-06 15:50:28
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37 | Add to Reading ListSource URL: www.universeadventure.orgLanguage: English - Date: 2007-07-03 17:13:38
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38 | Add to Reading ListSource URL: www.universeadventure.orgLanguage: English - Date: 2007-07-03 17:13:38
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39 | Add to Reading ListSource URL: www.bobbromley.caLanguage: English - Date: 2012-06-14 14:36:31
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40 | Add to Reading ListSource URL: earth.columbia.eduLanguage: English - Date: 2012-04-03 15:42:05
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