Columbia subject headings:
Greece--Politics and government--20th century.
Panellēnio Sosialistiko Kinēma (Greece)--History.
Harvard subject headings:
Greece--Politics and government--20th century.
Panellēnio Sosialistiko Kinēma (Greece)--History.
Princeton subject headings:
Greece--Politics and government--20th century.
Panellēnio Sosialistiko Kinēma (Greece)--History.