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 Reagan Administration (1981-1989) 2006-07-26 00:00:00https://vocabularyserver.com/icpsr/xml.php?skosTema=2639https://vocabularyserver.com/icpsr/xml.php?skosTema=1453https://vocabularyserver.com/icpsr/xml.php?skosTema=1811https://vocabularyserver.com/icpsr/xml.php?skosTema=2828https://vocabularyserver.com/icpsr/xml.php?skosTema=3212