Columbia subject headings:
Harvard subject headings:
Communism--Greece--History.
Kommounistikon Komma tēs Hellados.
Zachariadēs, Nikos, 1903-1973.
Princeton subject headings:
Communists--Greece--Biography.
Kommounistiko Komma Helladas--History.
Zachariadēs, Nikos, 1903-1973.