Columbia subject headings:
Epirus (Greece and Albania)--History--Sources.
Greece--History--20th century.
Greece--Politics and government--20th century.
Harvard subject headings:
Albania--Foreign relations--Greece--Sources.
Epirus (Greece and Albania)--Ethnic relations--History--20th century--Sources.
Greece--Foreign relations--20th century--Sources.
Greece--Foreign relations--Albania--Sources.
Greeks--Epirus (Greece and Albania)--History--20th century--Sources.
Historiko Archeio tou Hypourgeiou Exōterikōn (Greece)
Princeton subject headings:
Epirus (Greece and Albania)--History--Sources.
Greeks--Epirus (Greece and Albania)--History--Sources.