41 | Add to Reading ListSource URL: aslo.orgLanguage: English - Date: 2007-11-11 09:42:38
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42 | Add to Reading ListSource URL: sciencenetlinks.comLanguage: English - Date: 2011-10-26 10:06:49
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43 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2000-01-04 14:59:07
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44 | Add to Reading ListSource URL: www.uapress.arizona.eduLanguage: English - Date: 2008-06-02 13:43:04
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45 | Add to Reading ListSource URL: water.epa.govLanguage: English - Date: 2011-09-10 15:59:06
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46 | Add to Reading ListSource URL: discovery.nasa.govLanguage: English - Date: 2013-05-31 12:03:59
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47 | Add to Reading ListSource URL: www.cgc.uaf.eduLanguage: English - Date: 2013-08-05 14:57:29
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48 | Add to Reading ListSource URL: www.planetary.brown.eduLanguage: English - Date: 2013-07-17 16:49:34
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49 | Add to Reading ListSource URL: www.planetary.brown.eduLanguage: English - Date: 2014-04-17 10:18:43
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50 | Add to Reading ListSource URL: www.lic.wisc.eduLanguage: English - Date: 2010-04-29 12:09:07
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