641 | Add to Reading ListSource URL: www.deq.state.ok.usLanguage: English - Date: 2004-02-05 16:07:29
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642 | Add to Reading ListSource URL: www.riken.jpLanguage: English - Date: 2013-05-20 20:34:53
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643 | Add to Reading ListSource URL: fcat.fldoe.orgLanguage: English - Date: 2012-11-06 10:41:15
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644 | Add to Reading ListSource URL: www.sciencestuff.comLanguage: English - Date: 2013-07-02 14:22:54
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645 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2005-09-30 07:09:33
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646 | Add to Reading ListSource URL: www.atsdr.cdc.govLanguage: English - Date: 2012-04-19 10:35:31
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647 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2005-09-30 07:09:33
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648 | Add to Reading ListSource URL: www.sciencestuff.comLanguage: English - Date: 2013-07-02 14:22:53
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649 | Add to Reading ListSource URL: www.env.gov.nl.caLanguage: English - Date: 2010-05-13 12:51:48
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650 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-07-05 17:18:26
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