https://vocabularyserver.com/icpsr/ ICPSR Subject Thesaurus Interuniversity Consortium for Political and Social Research social science subject terms Interuniversity Consortium for Political and Social Research 2006-07-26 en 2006-07-26 00:00:00 American Civil War 2006-07-26 00:00:00https://vocabularyserver.com/icpsr/xml.php?skosTema=517https://vocabularyserver.com/icpsr/xml.php?skosTema=157https://vocabularyserver.com/icpsr/xml.php?skosTema=612https://vocabularyserver.com/icpsr/xml.php?skosTema=613https://vocabularyserver.com/icpsr/xml.php?skosTema=1566https://vocabularyserver.com/icpsr/xml.php?skosTema=2838https://vocabularyserver.com/icpsr/xml.php?skosTema=3070https://vocabularyserver.com/icpsr/xml.php?skosTema=3406