91 | Add to Reading ListSource URL: datapreservation.usgs.govLanguage: English - Date: 2010-09-02 16:45:34
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92 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2003-01-06 15:08:52
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93 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2006-09-19 14:55:34
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94 | Add to Reading ListSource URL: www.nfrmp.usLanguage: English - Date: 2012-09-07 11:13:57
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95 | Add to Reading ListSource URL: ngmdb.usgs.govLanguage: English - Date: 2004-12-17 14:39:49
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96 | Add to Reading ListSource URL: ngmdb.usgs.govLanguage: English - Date: 2004-12-20 17:57:47
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97 | Add to Reading ListSource URL: ngmdb.usgs.govLanguage: English - Date: 2004-10-12 13:31:32
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98 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2009-07-13 19:42:25
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99 | Add to Reading ListSource URL: www.networkedplanet.comLanguage: English - Date: 2005-10-21 06:52:26
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100 | Add to Reading ListSource URL: na.unep.netLanguage: English - Date: 2012-04-26 15:25:55
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