1 | Add to Reading ListSource URL: www.foothill.edu- Date: 2008-06-07 20:47:41
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2 | Add to Reading ListSource URL: mtac.isws.illinois.eduLanguage: English - Date: 2007-01-26 14:06:47
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3 | Add to Reading ListSource URL: aqgeochem.wustl.eduLanguage: English - Date: 2015-11-02 21:25:26
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4 | Add to Reading ListSource URL: belizeswama.comLanguage: English - Date: 2016-04-20 11:21:52
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5 | Add to Reading ListSource URL: www.earthscienceeducation.comLanguage: English - Date: 2016-04-25 14:49:39
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6 | Add to Reading ListSource URL: www.hydroweb.comLanguage: English - Date: 2009-07-16 12:32:10
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7 | Add to Reading ListSource URL: www.medicalgeology.orgLanguage: English - Date: 2015-10-27 09:59:56
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8 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2015-11-25 13:31:53
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9 | Add to Reading ListSource URL: www.ila-lead.orgLanguage: English - Date: 2014-03-24 09:06:57
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10 | Add to Reading ListSource URL: www.tellusborder.euLanguage: English - Date: 2016-08-23 20:46:04
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