41 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2006-08-15 09:15:05
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42 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2012-01-24 15:24:31
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43 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2011-11-01 10:51:18
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44 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2013-06-21 10:58:33
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45 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2012-10-05 11:12:33
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46 | Add to Reading ListSource URL: minerals.usgs.govLanguage: English - Date: 2009-02-02 09:22:30
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47 | Add to Reading ListSource URL: www.watertransit.orgLanguage: English - Date: 2013-02-06 18:46:42
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48 | Add to Reading ListSource URL: www.abag.ca.govLanguage: English - Date: 2013-04-08 12:54:35
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49 | Add to Reading ListSource URL: www.smartgrowthamerica.orgLanguage: English - Date: 2014-01-13 12:44:17
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50 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2005-10-31 15:09:31
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