101 | Add to Reading ListSource URL: history.nd.govLanguage: English - Date: 2011-10-11 14:39:36
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102 | Add to Reading ListSource URL: history.nd.govLanguage: English - Date: 2012-04-03 14:18:13
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103 | Add to Reading ListSource URL: www.history.nd.govLanguage: English - Date: 2008-09-01 12:34:29
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104 | Add to Reading ListSource URL: ndstudies.govLanguage: English - Date: 2012-12-28 10:19:42
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105 | Add to Reading ListSource URL: history.nd.govLanguage: English - Date: 2008-09-01 12:34:29
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106 | Add to Reading ListSource URL: www.nd.govLanguage: English - Date: 2011-09-29 12:05:38
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107 | Add to Reading ListSource URL: www.nd.govLanguage: English - Date: 2011-12-13 14:55:35
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108 | Add to Reading ListSource URL: www.ndsu.eduLanguage: English - Date: 2003-06-30 01:00:00
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109 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2006-03-28 20:27:42
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110 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2007-09-12 16:33:00
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