491![](https://www.pdfsearch.io/img/7cc96fd179d20a2b278987859e96eba3.jpg) | Add to Reading ListSource URL: www.iene.grLanguage: English - Date: 2013-08-28 06:52:00
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492![](https://www.pdfsearch.io/img/108652b426fff79bc7e35445953abe3d.jpg) | Add to Reading ListSource URL: www.bl-a.com- Date: 2005-06-10 13:22:30
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493![](https://www.pdfsearch.io/img/95a50293afb8bb224b8d4519750ba410.jpg) | Add to Reading ListSource URL: www2.census.govLanguage: English - Date: 2013-09-30 17:08:13
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494![](https://www.pdfsearch.io/img/38083cedf3d94a9704f2c6016a9709c1.jpg) | Add to Reading ListSource URL: geoheat.oit.eduLanguage: English - Date: 2012-12-20 21:54:35
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495![](https://www.pdfsearch.io/img/baf3f9791992f16ce4d4d78664ae59d2.jpg) | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2006-04-04 08:36:32
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496![](https://www.pdfsearch.io/img/2e59d41460408d04e5fdb3eac3fc092f.jpg) | Add to Reading ListSource URL: nora.nerc.ac.ukLanguage: English - Date: 2012-07-25 13:31:02
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497![](https://www.pdfsearch.io/img/e6c229f4410f8c78ab6aea59bcfc996d.jpg) | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2011-02-28 16:08:34
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498![](https://www.pdfsearch.io/img/44d04a678a094e0a28e6b035bfeeb0fa.jpg) | Add to Reading ListSource URL: pubs.usgs.govLanguage: English - Date: 2007-06-25 17:14:04
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499![](https://www.pdfsearch.io/img/bc664fc43704da9b186ca775e94ae7c3.jpg) | Add to Reading ListSource URL: geoheat.oit.eduLanguage: English - Date: 2011-12-29 18:00:17
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500![](https://www.pdfsearch.io/img/7a1aee065c25088ff7f8069c5b5b7865.jpg) | Add to Reading ListSource URL: geoheat.oit.eduLanguage: English - Date: 2012-04-03 13:20:15
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