921 | Add to Reading ListSource URL: www.acs.orgLanguage: English - Date: 2013-05-08 12:13:20
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922 | Add to Reading ListSource URL: hc-sc.gc.caLanguage: English - Date: 2013-07-09 12:15:14
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923 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2012-04-04 12:13:22
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924 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2012-04-09 11:05:37
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925 | Add to Reading ListSource URL: minerals.er.usgs.govLanguage: English - Date: 1997-03-12 07:46:11
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926 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1998-02-26 08:36:17
|
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927 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2002-02-14 13:22:50
|
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928 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2000-02-04 07:26:58
|
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929 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2001-02-01 13:46:11
|
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930 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2011-05-23 12:51:54
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