1 | Add to Reading ListSource URL: www.usma.eduLanguage: English - Date: 2012-02-03 11:30:32
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2 | Add to Reading ListSource URL: teacherlink.ed.usu.eduLanguage: English - Date: 2009-06-02 16:55:00
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3 | Add to Reading ListSource URL: www.westpoint.eduLanguage: English - Date: 2012-02-03 11:30:32
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4 | Add to Reading ListSource URL: www.lib.utexas.eduLanguage: English - Date: 2011-08-17 17:48:04
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5 | Add to Reading ListSource URL: www.lib.utexas.eduLanguage: English - Date: 2011-02-08 12:50:08
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6 | Add to Reading ListSource URL: www.lib.utexas.eduLanguage: English - Date: 2013-10-01 13:21:17
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7 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2002-11-18 07:17:00
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