31 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2012-04-04 12:13:11
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32 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 2000-10-31 08:06:15
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33 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2012-04-04 12:13:11
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34 | Add to Reading ListSource URL: www.certh.grLanguage: English - Date: 2014-04-04 02:34:58
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35 | Add to Reading ListSource URL: www.katerina-tuckova.czLanguage: Czech - Date: 2012-09-20 19:59:38
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36 | Add to Reading ListSource URL: ec.europa.euLanguage: English - Date: 2012-03-19 06:20:36
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37 | Add to Reading ListSource URL: ec.europa.euLanguage: English - Date: 2014-06-20 06:00:19
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38 | Add to Reading ListSource URL: pms.lexington1.netLanguage: English - Date: 2014-06-04 15:30:35
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39 | Add to Reading ListSource URL: www.cityhonors.orgLanguage: English - Date: 2011-09-02 17:09:34
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40 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2002-07-16 11:00:50
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