51 | Add to Reading ListSource URL: media.iupac.orgLanguage: English - Date: 2011-03-16 11:12:15
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52 | Add to Reading ListSource URL: www.nevadamining.orgLanguage: English - Date: 2014-01-13 19:26:35
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53 | Add to Reading ListSource URL: pdg.lbl.govLanguage: English - Date: 2013-12-18 16:21:20
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54 | Add to Reading ListSource URL: www.waterboards.ca.govLanguage: English - Date: 2008-06-04 18:38:43
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55 | Add to Reading ListSource URL: water.usgs.govLanguage: English - Date: 2006-11-07 12:13:37
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56 | Add to Reading ListSource URL: www.iupac.orgLanguage: English - Date: 2012-07-11 08:51:33
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57 | Add to Reading ListSource URL: water.usgs.govLanguage: English - Date: 2011-08-12 11:54:57
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58 | Add to Reading ListSource URL: water.usgs.govLanguage: English - Date: 2011-02-15 09:04:20
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59 | Add to Reading ListSource URL: digital.library.okstate.eduLanguage: English - Date: 2009-01-09 16:56:31
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60 | Add to Reading ListSource URL: www.nist.gov- Date: 2010-08-23 16:11:04
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