41 | Add to Reading ListSource URL: www.atp.nist.govLanguage: English - Date: 2004-02-10 07:36:28
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42 | Add to Reading ListSource URL: aquasec.orgLanguage: English - Date: 2014-10-17 17:48:23
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43 | Add to Reading ListSource URL: www.atp.nist.govLanguage: English - Date: 2004-10-21 05:31:33
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44 | Add to Reading ListSource URL: nationalacademies.orgLanguage: English - Date: 2014-11-14 00:52:07
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45 | Add to Reading ListSource URL: www.nas.eduLanguage: English - Date: 2014-11-14 00:52:07
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46 | Add to Reading ListSource URL: www.atp.nist.govLanguage: English - Date: 2004-01-30 08:18:28
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47 | Add to Reading ListSource URL: www.atp.nist.govLanguage: English - Date: 2004-02-10 07:32:50
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48 | Add to Reading ListSource URL: www.osec.doc.govLanguage: English - Date: 1997-10-24 15:35:38
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49 | Add to Reading ListSource URL: science.house.govLanguage: English - Date: 2012-05-30 09:11:10
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50 | Add to Reading ListSource URL: cdn.americanprogress.orgLanguage: English - Date: 2014-06-04 12:09:01
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