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 leaders 2006-07-26 00:00:00https://vocabularyserver.com/icpsr/xml.php?skosTema=360https://vocabularyserver.com/icpsr/xml.php?skosTema=584https://vocabularyserver.com/icpsr/xml.php?skosTema=2561https://vocabularyserver.com/icpsr/xml.php?skosTema=2874https://vocabularyserver.com/icpsr/xml.php?skosTema=3407https://vocabularyserver.com/icpsr/xml.php?skosTema=1946