991 | Add to Reading ListSource URL: pdf.oac.cdlib.orgLanguage: English - Date: 2014-10-05 14:19:00
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992 | Add to Reading ListSource URL: www.stem-it.orgLanguage: English - Date: 2012-10-01 01:19:32
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993 | Add to Reading ListSource URL: www.geology.ar.govLanguage: English - Date: 2009-12-04 11:05:56
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994 | Add to Reading ListSource URL: site.ambientweatherstore.comLanguage: English - Date: 2013-08-27 17:44:25
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995 | Add to Reading ListSource URL: www.stem-it.orgLanguage: English - Date: 2012-09-24 22:01:14
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996 | Add to Reading ListSource URL: site.ambientweatherstore.comLanguage: English - Date: 2013-11-26 16:03:20
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997 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2010-04-27 13:54:18
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998 | Add to Reading ListSource URL: www.nr.gov.nl.caLanguage: English - Date: 2010-11-17 09:12:18
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999 | Add to Reading ListSource URL: www.earthlearningidea.comLanguage: English - Date: 2011-02-27 11:28:44
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1000 | Add to Reading ListSource URL: www.emr.gov.yk.caLanguage: English - Date: 2014-05-26 17:26:27
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