201 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2001-02-01 13:10:34
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202 | Add to Reading ListSource URL: www.fws.govLanguage: English - Date: 2010-10-19 12:40:41
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203 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2000-03-06 12:15:15
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204 | Add to Reading ListSource URL: www.nhdfl.orgLanguage: English - Date: 2007-06-29 17:56:58
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205 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2009-02-02 08:21:14
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206 | Add to Reading ListSource URL: www.nhdfl.orgLanguage: English - Date: 2007-07-02 18:44:28
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207 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2007-10-09 10:55:28
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208 | Add to Reading ListSource URL: www.pubs.ext.vt.eduLanguage: English - Date: 2014-09-04 11:46:57
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209 | Add to Reading ListSource URL: www.nhdfl.orgLanguage: English - Date: 2010-03-26 14:21:13
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210 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2002-02-14 12:53:22
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