Columbia subject headings:
Harvard subject headings:
Communists--Japan--Biography
Espionage--Japan.
Itō, Ritsu, 1913-1989--Friends and associates.
Judicial error--Japan
Princeton subject headings:
Communists--Japan--Biography.
Espionage--Japan.
Itō, Ritsu, 1913-1989--Friends and associates.
Judicial error--Japan.