431 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 1998-02-26 08:51:04
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432 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 1997-03-12 08:46:14
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433 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 1998-02-26 07:49:17
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434 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 1997-03-19 11:46:16
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435 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2012-04-04 12:13:08
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436 | Add to Reading ListSource URL: 137.229.113.30Language: English - Date: 2014-06-30 12:05:05
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437 | Add to Reading ListSource URL: www.aps.orgLanguage: English - Date: 2011-02-17 17:20:19
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438 | Add to Reading ListSource URL: ec.europa.euLanguage: English - Date: 2014-06-26 11:34:59
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439 | Add to Reading ListSource URL: www.oecd.orgLanguage: English - Date: 2014-07-04 15:22:18
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440 | Add to Reading ListSource URL: www.ggg.glLanguage: English - Date: 2014-05-09 03:41:16
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