Columbia subject headings:
Mass (Music)
Masses, Unaccompanied.
Masses--14th century.
Harvard subject headings:
Bibliothèque de la Sorbonne. Manuscript. Rés. ms. I.
Church music--Catholic Church
Mass (Music)
Masses, Unaccompanied.
Masses--France--14th century.
Music--500-1400--History and criticism
Princeton subject headings: