Columbia subject headings:
Harvard subject headings:
Antistasiakē homada "Nikētas" (Greece)
Ethnikon Apeleutherōtikon Metōpon (Greece)
Greece--History--Occupation, 1941-1944.
Petimezas, Hēraklēs.
World War, 1939-1945--Underground movements--Greece.
Zervas, Napoleōn.
Princeton subject headings:
Ethnikos Dēmokratikos Hellēnikos Syndesmos (Greece)--History--Sources.
Greece--History--Occupation, 1941-1944--Sources.
Petimezas, Hēraklēs.
World War, 1939-1945--Underground movements--Greece--Sources.
Zervas, Napoleōn--Correspondence.