51 | Add to Reading ListSource URL: www.sim-metrologia.org.brLanguage: English - Date: 2014-03-25 18:04:34
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52 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1998-11-30 14:25:30
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53 | Add to Reading ListSource URL: www.fws.govLanguage: English - Date: 2001-11-19 12:11:17
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54 | Add to Reading ListSource URL: www.gov.mb.caLanguage: English - Date: 2013-11-21 12:04:39
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55 | Add to Reading ListSource URL: www.conservation.ca.govLanguage: English - Date: 2014-04-28 20:15:52
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56 | Add to Reading ListSource URL: www.consrv.ca.govLanguage: English - Date: 2014-04-28 20:15:52
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57 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1998-04-08 12:26:42
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58 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1997-02-25 10:13:05
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59 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1997-04-11 14:40:12
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60 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2001-07-05 09:02:54
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