Columbia subject headings:
Harvard subject headings:
Greece--Politics and government--20th century.
Political parties--Greece--History--20th century.
Socialist parties--Greece--History--20th century.
Tsipras, Alexēs.
Princeton subject headings:
Greece--Politics and government--20th century.
Liberalism--Greece--History--20th century.
Synaspismos (Political party : Greece)
Tsipras, Alexēs.