Title: Decreto sulle chiese orientali cattoliche Orientalium ecclesiarum
Subjects: Vatican Council (2nd : 1962-1965). Decretum de ecclesiis orientalibus catholicis, Eastern churches, Oriental rites, Catholic Church, Relations, Vatican Council (2nd : 1962-1965 : Basilica di San Pietro in Vaticano). Decretum de ecclesiis orientalibus catholicis