The Plainchant Gradual. Edited by Francis Burgess. (and R.L. Shields).
Burgess, Francis
2 ; X.229.b ; I. Advent to Holy Saturday. 1946. ; II. Easter to Advent 1948. ;III. Common of Saints & Votive Masses. 1952. ; IV. Proper of Saints. 1953. PtsIII & IV Seconded. 1962.