https://vocabularyserver.com/tgm1/ Thesaurus for Graphic Materials 1: Subject Terms Library of Congress. Prints and Photographs Division Graphic Materials, Subject Terms Library of Congress. Prints and Photographs Division 2007-07-04 en 2007-08-14 23:45:03 Freedom of information 2007-08-14 23:45:03 Information, Freedom of Intellectual freedom Right to know https://vocabularyserver.com/tgm1/xml.php?skosTema=2111https://vocabularyserver.com/tgm1/xml.php?skosTema=1837