Columbia subject headings:
Italian language--Phonology.
Italian language--Spoken Italian--Italy--Florence.
Italian language--Spoken Italian--Italy--Perugia.
Italian language--Spoken Italian--Italy--Rome.
Harvard subject headings:
Italian language--Spoken Italian--Italy--Florence.
Italian language--Spoken Italian--Italy--Perugia.
Italian language--Spoken Italian--Italy--Rome.
Italian language--Variation.
Princeton subject headings:
Italian lanauge--Spoken Italian--Italy--Florence.
Italian language--Phonology.
Italian language--Spoken Italian--Italy--Perugia.
Italian language--Spoken Italian--Italy--Rome.