Columbia subject headings:
Trials (Espionage)--Greece.
Harvard subject headings:
Argyriadis, Ilias, defendant.
Espionage--Greece, Modern.
Trials (Espionage)--Greece, Modern.
Princeton subject headings:
Argyriadis, Ilias.
Communism--Greece.
Espionage--Greece.
Trials (Espionage)--Greece.