Columbia subject headings:
Harvard subject headings:
China--Foreign relations--1949-1976.
China--Foreign relations--United States.
United States--Foreign relations--1969-1974.
United States--Foreign relations--China.
Princeton subject headings:
China--Foreign relations--1945-1976.
China--Foreign relations--United States.
United States--Foreign relations--1969-1974.
United States--Foreign relations--China.