Columbia subject headings:
Harvard subject headings:
Challant, Georges de, approximately 1440-1509.
Gregorian chants.
Illumination of books and manuscripts, Italian--Italy--Aosta.
Manuscripts, Latin (Medieval and modern)--Italy--Aosta--Facsimiles.
Missals--Texts.
Music--Manuscripts--Facsimiles
Santi Pietro e Orso (Church : Aosta, Italy). Manuscript. Codex 43.
Princeton subject headings:
Challant, Georges de, approximately 1440-1509.
Facsimiles.
Gregorian chants.
Illumination of books and manuscripts, Italian--Italy--Aosta.
Manuscripts, Latin (Medieval and modern)--Italy--Aosta--Facsimiles.
Missals--Texts.
Music--Manuscripts--Facsimiles.
Santi Pietro e Orso (Church : Aosta, Italy). Manuscript. Codex 43.