http://AATesaurus.cultura.gencat.cat/aat/getty_enhttp://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31431576photographic transparencies http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31431576 positives BT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31431576 transparencies RT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31431576 additive color screen films NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31431576 additive color screen plates NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31431576 photographic transparencies by process NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31431576 photographic transparencies by color NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31431576 interpositives NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31431576 color separation positives NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31431576 masks NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31431576 photographic transparency UF http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31431576 transparencies, photographic UF