Columbia subject headings:
Harvard subject headings:
Catholic Church--Foreign relations--China--Sources.
Catholic Church--Foreign relations--China.
China--Foreign relations--1644-1912--Sources.
China--Foreign relations--1912-1949--Sources.
China--Foreign relations--Catholic Church.
Papacy--History--19th century--Sources.
Papacy--History--20th century--Sources.
Princeton subject headings:
Catholic Church--Foreign relations--China--History.
China--Foreign relations--Catholic Church--History.