A summary catalogue of microfilms of one thousand scientific manuscripts in the Ambrosiana Library, Milan - Gabriel, Astrik Ladislaus <OPraem ; 1907-2005>. (OLS)http://semarc/name/18675 (The Medieval Institute University of Notre Dame, 1968)
Keywords: Milano - Biblioteca Ambrosiana - Cataloghi - Microfilm. (OLS)http://semarc/subject/58072