Oorspronklik: A Gregorian Chant Master Class. A Gregorian Chant Master Class composed by Theodore Marier, KCSG. Sacred. Book. 82 pages. GI.G-7360. Sacred.
Vertaling: A gregoriaans Master Class. A gregoriaans Master Class saamgestel deur Theodore Marier, KCSG. Heilige. 82 bladsye. ISBN 9780972220507.