Columbia subject headings:
Catholic Church--Foreign relations--Romania--History--20th century.
Romania--Foreign relations--Catholic Church--History--20th century.
Harvard subject headings:
Catholic Church--Foreign relations--Romania--History--20th century.
Catholic Church--Foreign relations--Romania.
Catholic Church--History--20th century.
Romania--Foreign relations--1914-1944.
Romania--Foreign relations--1944-1989.
Romania--Foreign relations--Catholic Church--History--20th century.
Romania--Foreign relations--Catholic Church.
Princeton subject headings:
Catholic Church--Foreign relations--Romania--History--20th century.
Romania--Foreign relations--Catholic Church--History--20th century.