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 school boards 2006-07-26 00:00:00 boards of education https://vocabularyserver.com/icpsr/xml.php?skosTema=1020https://vocabularyserver.com/icpsr/xml.php?skosTema=2980https://vocabularyserver.com/icpsr/xml.php?skosTema=2983