1 | Add to Reading ListSource URL: www.econedlink.orgLanguage: English - Date: 2012-07-13 14:35:32
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2 | Add to Reading ListSource URL: nist.govLanguage: English - Date: 2011-08-04 12:34:11
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3 | Add to Reading ListSource URL: nistdigitalarchives.contentdm.oclc.orgLanguage: English |
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4 | Add to Reading ListSource URL: www.oldindustry.orgLanguage: English - Date: 2013-01-02 22:03:17
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5 | Add to Reading ListSource URL: www.york.ac.ukLanguage: English - Date: 2009-02-03 08:56:00
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6 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 1999-10-05 11:15:56
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7 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2005-11-14 15:57:22
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8 | Add to Reading ListSource URL: www.nist.govLanguage: English - Date: 2011-08-04 12:34:11
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9 | Add to Reading ListSource URL: people.exeter.ac.ukLanguage: English - Date: 2005-07-30 08:25:48
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10 | Add to Reading ListSource URL: www.bls.govLanguage: English - Date: 2003-08-18 10:32:55
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