Columbia subject headings:
Citizenship--Japan.
Citizenship--Korea (North)
Citizenship--Korea (South)
Koreans--Legal status, laws, etc.--Japan.
Harvard subject headings:
Citizenship--Japan
Citizenship--Korea (North)
Citizenship--Korea (South)
Koreans--Legal status, laws, etc.--Japan
Princeton subject headings:
Citizenship--Japan.
Citizenship--Korea (North).
Citizenship--Korea (South).
Koreans--Legal status, laws, etc.--Japan.