381 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 1997-03-03 09:01:55
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382 | Add to Reading ListSource URL: www.cs.cmu.eduLanguage: English - Date: 2008-02-01 08:51:44
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383 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2013-08-06 17:17:44
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384 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2012-04-04 12:13:20
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385 | Add to Reading ListSource URL: www.in.govLanguage: English - Date: 2014-08-06 23:41:33
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386 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2012-04-04 12:13:20
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387 | Add to Reading ListSource URL: www.blm.govLanguage: English - Date: 2014-09-01 12:01:09
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388 | Add to Reading ListSource URL: co.water.usgs.govLanguage: English - Date: 2007-04-03 10:43:44
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389 | Add to Reading ListSource URL: science.nature.nps.govLanguage: English - Date: 2012-03-12 11:23:34
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390 | Add to Reading ListSource URL: www3.stat.sinica.edu.twLanguage: English - Date: 2014-05-21 03:00:11
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