81 | Add to Reading ListSource URL: rock.geosociety.orgLanguage: English - Date: 2008-06-18 12:23:47
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82 | Add to Reading ListSource URL: rock.geosociety.orgLanguage: English - Date: 2008-06-18 12:47:16
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83 | Add to Reading ListSource URL: www.usoilsandsinc.comLanguage: English - Date: 2014-09-30 10:04:12
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84 | Add to Reading ListSource URL: geoconvention.orgLanguage: English - Date: 2013-10-01 23:54:13
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85 | Add to Reading ListSource URL: engineering.und.eduLanguage: English - Date: 2015-01-10 10:27:40
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86 | Add to Reading ListSource URL: www.petroleumnews.comLanguage: English - Date: 2015-01-23 08:12:27
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87 | Add to Reading ListSource URL: www.ndoil.orgLanguage: English - Date: 2015-01-18 21:27:59
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88 | Add to Reading ListSource URL: www.ndoil.orgLanguage: English - Date: 2015-01-16 13:50:03
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89 | Add to Reading ListSource URL: www.ndoil.orgLanguage: English - Date: 2015-01-18 13:24:47
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90 | Add to Reading ListSource URL: www.ndoil.orgLanguage: English - Date: 2015-01-16 18:47:55
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