Columbia subject headings:
Harvard subject headings:
Labor disputes--Japan
Unfair labor practices--Japan.
Ōmi Kenshi Kabushiki Kaisha.
Ōmi Kenshi Rōdō Kumiai.
Princeton subject headings:
Labor disputes--Japan--History--20th century.
Ōmi Kenshi Kabushiki Kaisha--History.
Ōmi Kenshi Rōdō Kumiai--History.
Unfair labor practices--Japan--History--20th century.