Columbia subject headings:
Harvard subject headings:
Catholic Church--Italy--History--20th century.
Catholic Church. Treaties, etc. 1929 February 11.
Church and state--Italy--History--20th century
Gasparri, Pietro, 1852-1934.
Italy--Politics and government--20th century.
Papacy--History--20th century
Roman question.
Princeton subject headings:
Catholic Church--Foreign relations--Italy.
Catholic Church--Foreign relations--Treaties.
Catholic Church. Treaties, etc. 1929 February 11.
Catholic Church. Treaties, etc. 1984 Feb. 18.
Church and state--Italy--History--20th century.
Gasparri, Pietro, 1852-1934.
Italy--Foreign relations--Catholic Church.
Treaties.