21 | Add to Reading ListSource URL: eprints.ucm.esLanguage: English - Date: 2014-02-06 05:01:55
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22 | Add to Reading ListSource URL: www.epa.govLanguage: English - Date: 2015-01-05 13:15:58
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23 | Add to Reading ListSource URL: www.chgeol.orgLanguage: English - Date: 2014-03-13 12:16:17
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24 | Add to Reading ListSource URL: www.planetary.brown.eduLanguage: English - Date: 2014-12-01 10:15:35
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25 | Add to Reading ListSource URL: geoconvention.orgLanguage: English - Date: 2014-06-08 22:35:56
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26 | Add to Reading ListSource URL: ntp.niehs.nih.govLanguage: English - Date: 2014-11-11 12:57:30
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27 | Add to Reading ListSource URL: igs.indiana.eduLanguage: English - Date: 2014-01-29 12:16:40
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28 | Add to Reading ListSource URL: media.wiley.comLanguage: English - Date: 2010-11-20 07:11:42
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29 | Add to Reading ListSource URL: www.handbookofmineralogy.orgLanguage: English - Date: 2007-09-30 01:39:00
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30 | Add to Reading ListSource URL: rruff.infoLanguage: English - Date: 2005-11-08 13:09:58
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