https://vocabularyserver.com/apt/ APT Australian Pictorial Thesaurus National and State Libraries Australasia images, australia National and State Libraries Australasia 2001-05-23 en 2009-05-09 17:11:04 aerial advertising 2009-05-09 17:11:04 advertising, aerial sky advertising https://vocabularyserver.com/apt/xml.php?skosTema=4283https://vocabularyserver.com/apt/xml.php?skosTema=3135