1 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2014-11-03 08:58:32
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2 | Add to Reading ListSource URL: www.sustainableproduction.orgLanguage: English - Date: 2011-12-12 14:07:58
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3 | Add to Reading ListSource URL: www.chem.unep.chLanguage: English - Date: 2010-01-12 11:28:26
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4 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2005-10-25 10:31:13
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5 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2005-10-25 10:20:44
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6 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2002-02-13 13:46:53
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7 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-07-31 11:22:29
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8 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2004-01-13 10:48:20
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9 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2001-02-01 13:07:07
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10 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-01-29 11:34:42
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