The liturgy of the hours :
according to the Roman rite.

APA Citation

Catholic Church., Catholic Church. (19751976). The liturgy of the hours: according to the Roman rite. New York: Catholic Book Pub. Co..

MLA Citation

Catholic Church, and Catholic Church. The Liturgy of the Hours: According to the Roman Rite. New York: Catholic Book Pub. Co., 19751976.

Warning: These citations may not always be complete (especially for serials).