611 | Add to Reading ListSource URL: www.demographic-research.orgLanguage: English - Date: 2010-02-08 05:25:23
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612 | Add to Reading ListSource URL: www.demographic-research.orgLanguage: English - Date: 2009-08-10 11:26:22
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613 | Add to Reading ListSource URL: www.demographic-research.orgLanguage: English - Date: 2013-10-17 07:58:17
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614 | Add to Reading ListSource URL: www.demographic-research.orgLanguage: English - Date: 2010-03-10 07:16:12
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615 | Add to Reading ListSource URL: sdt.psc.isr.umich.eduLanguage: English - Date: 2007-03-13 17:17:47
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616 | Add to Reading ListSource URL: www.demographic-research.orgLanguage: English - Date: 2010-03-16 11:47:44
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617 | Add to Reading ListSource URL: www.demographic-research.orgLanguage: English - Date: 2010-03-09 11:06:46
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618 | Add to Reading ListSource URL: www.demographic-research.orgLanguage: English - Date: 2010-02-15 06:47:48
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619 | Add to Reading ListSource URL: www.demographic-research.orgLanguage: English - Date: 2009-05-12 03:18:51
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620 | Add to Reading ListSource URL: ncgg.princeton.eduLanguage: English - Date: 2008-11-12 20:28:46
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