611 | Add to Reading ListSource URL: caves.orgLanguage: English - Date: 2011-05-06 11:40:31
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612 | Add to Reading ListSource URL: carsologica.zrc-sazu.siLanguage: English - Date: 2012-01-16 16:13:42
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613 | Add to Reading ListSource URL: carsologica.zrc-sazu.siLanguage: English - Date: 2011-05-26 05:50:02
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614 | Add to Reading ListSource URL: helictite.caves.org.auLanguage: English - Date: 2011-01-18 20:28:33
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615 | Add to Reading ListSource URL: www.uwgb.eduLanguage: English - Date: 2008-04-25 08:58:12
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616 | Add to Reading ListSource URL: publicfiles.dep.state.fl.usLanguage: English - Date: 2009-09-22 22:12:00
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617 | Add to Reading ListSource URL: cardinalcreek.orgLanguage: English - Date: 2013-08-28 22:19:52
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618 | Add to Reading ListSource URL: www.udc.esLanguage: English - Date: 2009-10-08 04:50:07
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619 | Add to Reading ListSource URL: www.speleogenesis.infoLanguage: English - Date: 2011-03-06 09:57:39
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620 | Add to Reading ListSource URL: presentations.copernicus.orgLanguage: English - Date: 2011-04-29 01:51:18
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