Columbia subject headings:
China--Foreign economic relations--Japan.
Japan--Foreign economic relations--China.
Japan--Foreign economic relations--Soviet Union.
Raw materials--Japan.
Soviet Union--Foreign economic relations--Japan.
Harvard subject headings:
China--Foreign economic relations--Japan.
Japan--Foreign economic relations--China.
Japan--Foreign economic relations--Soviet Union.
Raw materials--Japan.
Soviet Union--Foreign economic relations--Japan.
Princeton subject headings: