161 | Add to Reading ListSource URL: digital.library.okstate.eduLanguage: English - Date: 2009-01-09 17:04:59
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162 | Add to Reading ListSource URL: water.epa.govLanguage: English - Date: 2011-09-10 02:57:53
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163 | Add to Reading ListSource URL: www.greatlakes-seaway.comLanguage: English - Date: 2013-03-21 15:21:34
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164 | Add to Reading ListSource URL: www.maine.govLanguage: English - Date: 2013-10-02 15:52:45
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165 | Add to Reading ListSource URL: epa.govLanguage: English - Date: 2011-04-06 12:12:50
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166 | Add to Reading ListSource URL: www.fish.state.pa.usLanguage: English - Date: 2011-04-25 11:14:18
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167 | Add to Reading ListSource URL: epa.govLanguage: English - Date: 2011-04-06 12:12:46
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168 | Add to Reading ListSource URL: www.vtwsr.orgLanguage: English - Date: 2010-07-28 23:20:00
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169 | Add to Reading ListSource URL: epa.govLanguage: English - Date: 2011-04-06 12:12:47
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170 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2013-05-16 14:03:45
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