Gloria in excelsis, Bosse 13, Vatican ad lib. II: Laudat in excelsis/ Rex hodie Christus
edited by John Boe; composed by Anonymous (1125), Gloria in excelsis, Bosse 13, Vatican ad lib. II: Laudat in excelsis/ Rex hodie Christus (Middleton, WI: A-R Editions, Inc., 1990), 38 page(s)