Vatican has just issued a newly published Ordo Cantus Officii. This
replaces the edition from 1983 with an updated ordo which includes the
newly-promulgated Antiphons which were announced in 2008. The Ordo
Cantus Officii contains the ordo for the Office of Readings, Lauds,
Terce, Sext, None, Vespers and Compline along with Scriptural
references. It is cross-referenced to the Antiphonale Romanum, the Liber
Hymnarius and the Corpus Antiphonalium Officii giving easy access to
the Gregorian settings of the Antiphons.