681 | Add to Reading ListSource URL: exact-me.orgLanguage: English - Date: 2001-10-31 03:39:40
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682 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2003-02-04 04:50:04
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683 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2010-09-30 06:44:40
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684 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2007-04-24 18:07:29
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685 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2007-04-24 18:59:12
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686 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2007-05-03 16:22:17
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687 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2007-04-24 17:52:38
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688 | Add to Reading ListSource URL: www.dtic.milLanguage: English - Date: 2005-07-22 08:13:58
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689 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2007-04-24 17:46:11
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690 | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2007-04-24 18:10:15
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