Columbia subject headings:
Choruses, Sacred (Mixed voices), Unaccompanied.
Hymns, Czech.
Mary, Blessed Virgin, Saint--Songs and music.
Harvard subject headings:
Hymns, Czech.
Mary, Blessed Virgin, Saint--Songs and music.
Part songs, Czech.
Part songs, Sacred.
Princeton subject headings:
Hymns, Czech.
Hymns.
Part songs.