Columbia subject headings:
China--Foreign relations--Soviet Union.
Soviet Union--Foreign relations--China.
United States--Defenses.
United States--Foreign relations--1969-1974.
Harvard subject headings:
China--Foreign relations--Soviet Union.
Soviet Union--Foreign relations--China.
United States--Defenses.
United States--Foreign relations--1969-1974.
Princeton subject headings:
China--Foreign relations--Soviet Union.
Soviet Union--Foreign relations--China.
United States--Defenses.
United States--Foreign relations--1969-1974.