"Le  nombre musical grégorien"
Subtitle: a study of Gregorian musical rhythm.
By: English translation by Aileen Tone.
Publisher: Society of S. John the Evangelist, Desclée
Published: 1932
Place of publication: Tournai, Rome
Language: eng
Subjects: Gregorian chants.
Notes: Vol. 1 issued in 2 parts, continuously paged.