These sound inventories are taken from: Romano Antonio (2008). Inventarî sonori delle lingue: elementi descrittivi di sistemi e processi di variazione segmentali e sovrasegmentali. Alessandria: Dell'Orso, 204 pp., euro 16,00 ISBN: 978-88-6274-062-3.
Students aiming to pass the examination of General Linguistics (first degree, I sem.) are invited to download and study the sound inventory of Italian (compulsory for every career)
and the sound inventories of two languages they chose to study.
At this link an on-line version is available of chapter VI from Inventarî sonori delle lingue: elementi descrittivi di sistemi e processi di variazione segmentali e sovrasegmentali.
The (4) above-mentioned documents are part of the course programme (as published within the "guida dello studente").
Students who are not aware about this stuff are candidates to a failing.