Columbia subject headings:
Japan--Commerce--Korea--History.
Japan--Foreign relations--1185-1600.
Japan--Relations--Korea.
Korea--Commerce--Japan--History.
Korea--Relations--Japan.
Harvard subject headings:
China--Relations--Japan.
Japan--History--1185-1600.
Japan--Relations--China.
Japan--Relations--Korea.
Korea--Relations--Japan.
Princeton subject headings:
China--Relations--Japan.
Japan--History--1185-1600.
Japan--Relations--China.
Japan--Relations--Korea.
Korea--Relations--Japan.