Columbia subject headings:
Harvard subject headings:
Genikē Synomospondia Ergatōn Helladas--Political activity--History.
Greece--Foreign relations--1935-1967.
Princeton subject headings:
Genikē Synomospondia Ergatōn Helladas--History.
Greece--Politics and government--1935-1967.
Labor movement--Greece--Foreign influences.
Labor movement--Greece--History--20th century.
Labor unions--Greece--History--20th century.