171 | Add to Reading ListSource URL: www.dgs.udel.eduLanguage: English - Date: 2009-07-09 11:06:04
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172 | Add to Reading ListSource URL: www.ipa.udel.eduLanguage: English - Date: 2003-05-02 10:53:44
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173 | Add to Reading ListSource URL: www.dgs.udel.eduLanguage: English - Date: 2009-07-10 07:56:36
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174 | Add to Reading ListSource URL: www.dgs.udel.eduLanguage: English - Date: 2009-07-06 12:06:18
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175 | Add to Reading ListSource URL: www.ipa.udel.eduLanguage: English - Date: 2003-12-01 11:58:16
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176 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2001-07-09 17:13:30
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177 | Add to Reading ListSource URL: www.wra.udel.eduLanguage: English - Date: 2013-02-22 10:27:43
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178 | Add to Reading ListSource URL: www.ipa.udel.eduLanguage: English - Date: 2003-05-02 10:26:39
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179 | Add to Reading ListSource URL: www.dgs.udel.eduLanguage: English - Date: 2014-08-05 11:29:51
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180 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2004-06-30 10:21:57
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