11 | Add to Reading ListSource URL: www.ldeo.columbia.eduLanguage: English - Date: 2010-09-25 15:17:36
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12 | Add to Reading ListSource URL: www.maine.govLanguage: English - Date: 2013-07-26 10:23:02
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13 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2005-06-10 19:15:17
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14 | Add to Reading ListSource URL: www.azgs.az.govLanguage: English - Date: 2011-10-05 02:35:25
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15 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2005-06-10 19:18:12
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16 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2005-06-10 19:18:43
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17 | Add to Reading ListSource URL: www.anr.state.vt.usLanguage: English - Date: 2013-05-22 11:26:44
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18 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2008-04-03 13:04:47
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19 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2008-05-16 23:34:20
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20 | Add to Reading ListSource URL: ngmdb.usgs.govLanguage: English - Date: 2008-05-26 08:52:01
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