Ritger, K. E., & Kwatera, M. (2004). Prayer in all things: A Saint Benedict's, Saint John's prayer book. Liturgical Press.
Dyfyniad Arddull ChicagoRitger, Kate E., and Michael Kwatera. Prayer in All Things: A Saint Benedict's, Saint John's Prayer Book. Collegeville, Minn.: Liturgical Press, 2004.
Dyfyniad MLARitger, Kate E., and Michael Kwatera. Prayer in All Things: A Saint Benedict's, Saint John's Prayer Book. Liturgical Press, 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.