Gy OP, P. M. books & textbook
The Church at Prayer: Volume I: Principles of the Liturgy (Volume 1)
Martimort, A.-G. Dalmais OP, I. H. Gy OP, P. M. Jounel, P.
Liturgical Press /1987-05-01 Paperback / 318 Pages
isbn-10: 0814613632 / isbn-13: 9780814613634
Church at Prayer I: Sources Liturgy (Bk.1)
A.-G. Martimort; I. H. Dalmais OP; P. M. Gy OP; P. Jounel
Liturgical Press /1987T Paperback / 318 Pages
isbn-10: 0225664259 / isbn-13: 9780225664256
