21 | Add to Reading ListSource URL: www.niss.orgLanguage: English - Date: 2004-01-21 15:20:18
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22 | Add to Reading ListSource URL: www.ops.fhwa.dot.govLanguage: English - Date: 2009-02-13 12:32:48
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23 | Add to Reading ListSource URL: www.ops.fhwa.dot.govLanguage: English - Date: 2006-10-24 14:16:29
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24 | Add to Reading ListSource URL: www.mtc.ca.govLanguage: English - Date: 2010-08-05 16:59:31
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25 | Add to Reading ListSource URL: www.mtc.ca.govLanguage: English - Date: 2009-02-27 13:06:41
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26 | Add to Reading ListSource URL: www.ite.orgLanguage: English - Date: 2014-10-23 12:54:44
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27 | Add to Reading ListSource URL: www.dot.state.mn.usLanguage: English - Date: 2010-02-01 11:35:00
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28 | Add to Reading ListSource URL: itd.idaho.govLanguage: English - Date: 1999-06-08 17:53:24
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29 | Add to Reading ListSource URL: www.dot.state.mn.usLanguage: English - Date: 2010-02-01 11:34:40
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30 | Add to Reading ListSource URL: ops.fhwa.dot.govLanguage: English - Date: 2005-02-16 12:19:00
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