Columbia subject headings:
Harvard subject headings:
Catholic Church--Liturgy--Texts--Manuscripts--Exhibitions.
Illumination of books and manuscripts, Medieval--Italy--Valle d'Aosta--Exhibitions.
Manuscripts, Latin (Medieval and modern)--Italy--Valle d'Aosta--Exhibitions.
Princeton subject headings:
Catholic Church--Italy--Valle d'Aosta--Exhibitions.
Catholic Church--Liturgy--Texts--Manuscripts--Exhibitions.