401 | Add to Reading ListSource URL: www.blm.govLanguage: English - Date: 2011-06-14 23:55:26
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402 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2012-04-09 11:05:36
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403 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2012-04-04 11:50:55
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404 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2012-04-04 11:49:31
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405 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2011-04-06 12:15:00
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406 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2012-04-04 11:50:43
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407 | Add to Reading ListSource URL: www.usc.eduLanguage: English - Date: 2012-04-30 03:33:54
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408 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 1998-02-26 07:42:54
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409 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2009-02-02 09:14:32
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410 | Add to Reading ListSource URL: www.getty.eduLanguage: English - Date: 2013-09-12 14:28:56
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