61 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2014-11-24 14:03:00
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62 | Add to Reading ListSource URL: www.usc.eduLanguage: English - Date: 2014-04-25 17:12:46
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63 | Add to Reading ListSource URL: www.oregon.govLanguage: English - Date: 2014-12-08 15:07:42
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64 | Add to Reading ListSource URL: www.usc.eduLanguage: English - Date: 2014-04-25 17:10:48
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65 | Add to Reading ListSource URL: www.oregon.govLanguage: English - Date: 2014-02-21 17:01:51
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66 | Add to Reading ListSource URL: www.ohioairquality.orgLanguage: English - Date: 2003-11-17 12:37:37
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67 | Add to Reading ListSource URL: www.blm.govLanguage: English - Date: 2014-12-10 15:16:32
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68 | Add to Reading ListSource URL: www.zft.uni-freiburg.deLanguage: English - Date: 2014-08-12 08:05:40
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69 | Add to Reading ListSource URL: theochem.orgLanguage: English - Date: 2005-11-09 03:26:33
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70 | Add to Reading ListSource URL: www.ima-europe.euLanguage: English - Date: 2012-10-15 06:10:11
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