Books/Manuscript: (IT) Libreria Musicale Italiana (LIM) New Release: "Il canto ambrosiano dalle origini al IX Secolo"
Il canto ambrosiano dalle origini al IX Secolo
Silloge ragionata degli studi recenti
Author: Francesco Petazzi
Edition: Lucca, LIM, 2012 (Quaderni Ambrosiani, 5)
You may also want to visit this particular website and browse the list of releases in its catalogue. There are quite a few interesting early music publications and there are usually quite frequent releases. (Editor)
Visit the Libreria Musicale Italiana (LIM) website for more information of new and recent releases.