Columbia subject headings:
Cheju Strait (Korea)--International status.
Japan--Foreign relations--Korea.
Korea--Foreign relations--Japan.
Straits--Korea.
Harvard subject headings:
Cheju Strait (Korea)--International status.
Japan--Foreign relations--Korea.
Korea--Foreign relations--Japan.
Straits--Korea.
Princeton subject headings:
Cheju Strait (Korea)--International status.
Japan--Foreign relations--Korea.
Korea--Foreign relations--Japan.
Straits--Korea.