271 | Add to Reading ListSource URL: walrus.wr.usgs.govLanguage: English - Date: 2009-08-24 11:30:59
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272 | Add to Reading ListSource URL: walrus.wr.usgs.govLanguage: English - Date: 2009-07-08 14:19:34
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273 | Add to Reading ListSource URL: sogc.orgLanguage: English - Date: 2013-04-15 12:54:38
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274 | Add to Reading ListSource URL: walrus.wr.usgs.gov- Date: 2009-09-18 18:28:43
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275 | Add to Reading ListSource URL: walrus.wr.usgs.govLanguage: English - Date: 2013-08-22 12:57:07
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276 | Add to Reading ListSource URL: www.nammco.noLanguage: English - Date: 2007-08-06 18:00:00
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277 | Add to Reading ListSource URL: walrus.wr.usgs.govLanguage: English - Date: 2006-03-14 14:22:00
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278 | Add to Reading ListSource URL: walrus.wr.usgs.govLanguage: English - Date: 2004-12-10 19:02:31
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279 | Add to Reading ListSource URL: walrus.wr.usgs.govLanguage: English - Date: 2007-05-04 19:09:52
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280 | Add to Reading ListSource URL: walrus.wr.usgs.govLanguage: English - Date: 2013-03-21 17:55:40
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