11 | Add to Reading ListSource URL: iugs.org- Date: 2017-04-27 11:55:30
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12 | Add to Reading ListSource URL: iugs.org- Date: 2017-07-13 15:22:34
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13 | Add to Reading ListSource URL: iugs.org- Date: 2017-04-28 11:50:27
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14 | Add to Reading ListSource URL: iugs.org- Date: 2017-07-18 18:01:25
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15 | Add to Reading ListSource URL: stratigraphy.org- Date: 2013-02-14 09:33:25
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16 | Add to Reading ListSource URL: stratigraphy.org- Date: 2013-02-14 09:35:41
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17 | Add to Reading ListSource URL: cgi-iugs.org- Date: 2011-01-07 05:00:35
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18 | Add to Reading ListSource URL: cgi-iugs.orgLanguage: English - Date: 2009-12-17 10:21:29
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19 | Add to Reading ListSource URL: cgi-iugs.orgLanguage: English - Date: 2013-05-16 04:32:08
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20 | Add to Reading ListSource URL: cgi-iugs.orgLanguage: English - Date: 2008-11-17 07:17:31
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