Columbia subject headings:
China--Foreign relations--United States.
China--History--Boxer Rebellion, 1899-1901.
United States--Foreign relations--China.
Harvard subject headings:
China--Foreign relations--United States.
China--History--20th century
United States--Foreign relations--China.
Princeton subject headings:
China--Foreign relations--20th century.
China--Foreign relations--United States.
United States--Foreign relations--20th century.
United States--Foreign relations--China.