311 | Add to Reading ListSource URL: www.dep.state.fl.usLanguage: English - Date: 2013-02-13 13:32:13
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312 | Add to Reading ListSource URL: iugs.orgLanguage: English - Date: 2014-10-14 16:50:07
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313 | Add to Reading ListSource URL: igs.indiana.eduLanguage: English - Date: 2014-10-17 16:07:04
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314 | Add to Reading ListSource URL: nature.nps.govLanguage: English - Date: 2014-11-03 10:33:22
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315 | Add to Reading ListSource URL: repository.azgs.az.govLanguage: English - Date: 2010-12-14 11:48:41
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316 | Add to Reading ListSource URL: www.state.tn.usLanguage: English - Date: 2014-09-16 10:09:25
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317 | Add to Reading ListSource URL: www.earthsciweek.orgLanguage: English - Date: 2014-08-14 09:24:11
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318 | Add to Reading ListSource URL: www.anr.state.vt.usLanguage: English - Date: 2014-08-20 15:18:24
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319 | Add to Reading ListSource URL: geology.iweb.bsu.eduLanguage: English - Date: 2014-10-16 14:45:10
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320 | Add to Reading ListSource URL: www.dmr.nd.govLanguage: English - Date: 2008-06-16 14:22:46
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