Columbia subject headings:
Harvard subject headings:
Radicals--Japan--History--20th century.
Rengō Sekigun (Japan)--History.
Terrorism--Japan--Karuizawa-machi--History--20th century.
Princeton subject headings:
Radicals--Japan--History--20th century.
Rengō Sekigun (Japan)--History.
Terrorism--Japan--Karuizawa-machi--History--20th century.