Columbia subject headings:
Education--Greece.
Teachers--Greece--History--20th century.
Teachers--Greece--Iōannina.
Harvard subject headings:
Education--Greece
Teachers--Greece--History--20th century.
Teachers--Greece--Iōannina.
Princeton subject headings:
Iōannina (Greece : Nome)--History--20th century.
Syllogos tōn dēmodidaskalōn tou Nomou Iōanninōn.
Teachers' unions--Greece--Iōannina (Nome)--History--20th century.