1 | Add to Reading ListSource URL: chroniclingamerica.loc.govLanguage: English - Date: 2010-07-19 17:54:17
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2 | Add to Reading ListSource URL: phys.orgLanguage: English - Date: 2015-01-15 10:50:03
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3 | Add to Reading ListSource URL: www.ibwc.state.govLanguage: English - Date: 2014-09-23 20:11:32
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4 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2011-11-12 17:03:27
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5 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2012-04-09 11:13:37
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6 | Add to Reading ListSource URL: www.arizonahistoricalsociety.orgLanguage: English - Date: 2013-03-19 11:12:00
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7 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2006-07-21 12:24:09
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8 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2012-04-09 11:13:37
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9 | Add to Reading ListSource URL: www.udallcenter.arizona.eduLanguage: English - Date: 2013-02-12 15:20:35
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10 | Add to Reading ListSource URL: seagoedd.orgLanguage: English - Date: 2012-05-01 16:10:47
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