Columbia subject headings:
Harvard subject headings:
Greece--Kings and rulers
Greece--Politics and government--19th century.
Greece--Politics and government--20th century.
Monarchy--Greece--History--19th century.
Monarchy--Greece--History--20th century.
Princeton subject headings:
Greece--Kings and rulers.
Greece--Politics and government--19th century.
Greece--Politics and government--20th century.
Monarchy--Greece--History--19th century.
Monarchy--Greece--History--20th century.