O lux beata Trinitas : SATB a cappella /
Andrew, Kerry.
Ambrose,Saint, Bishop of Milan,-397.
Oxford : Oxford University Press,
c2007.
Cover title.
Words ascribed to St. Ambrose.
Includes piano reduction for rehearsal only.
Includes biographical note.
Anthems.
Choruses, Sacred (Mixed voices, 4 parts), Unaccompanied.