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 Native Americans 2006-07-26 00:00:00 American Indians Amerindians https://vocabularyserver.com/icpsr/xml.php?skosTema=1160