481 | Add to Reading ListSource URL: apms.orgLanguage: English - Date: 2012-10-04 09:26:39
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482 | Add to Reading ListSource URL: www.esd.ornl.govLanguage: English - Date: 2014-05-29 12:52:26
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483 | Add to Reading ListSource URL: scifun.chem.wisc.eduLanguage: English - Date: 2010-10-14 16:21:48
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484 | Add to Reading ListSource URL: www.nysedregents.orgLanguage: English - Date: 2010-09-07 15:41:37
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485 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2012-03-07 20:36:22
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486 | Add to Reading ListSource URL: www.esd.ornl.govLanguage: English - Date: 2005-09-01 08:11:19
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487 | Add to Reading ListSource URL: www.nrcs.usda.govLanguage: English - Date: 2013-10-31 14:12:07
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488 | Add to Reading ListSource URL: www.ed.gov.nl.caLanguage: English - Date: 2009-03-02 10:37:04
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489 | Add to Reading ListSource URL: www.ed.gov.nl.caLanguage: English - Date: 2009-03-02 10:37:04
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490 | Add to Reading ListSource URL: www.chemguide.co.ukLanguage: English - Date: 2012-12-03 11:52:46
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