Columbia subject headings:
Harvard subject headings:
Forced labor--Japan--History--20th century.
Foreign workers, Korean--Japan--History--20th century.
Service, Compulsory non-military--Japan--History--20th century.
Princeton subject headings:
Forced labor--Japan--History--20th century.
Foreign workers, Korean--Japan--History--20th century.
Service, Compulsory non-military--Japan--History--20th century.