1 | Add to Reading ListSource URL: rock.geosociety.orgLanguage: English - Date: 2010-12-15 12:49:40
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2 | Add to Reading ListSource URL: rock.geosociety.orgLanguage: English - Date: 2011-11-23 11:41:45
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3 | Add to Reading ListSource URL: rock.geosociety.orgLanguage: English - Date: 2012-12-04 16:30:52
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4 | Add to Reading ListSource URL: www.kansasoilmuseum.org- Date: 2014-01-09 23:58:45
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