Columbia subject headings:
Railroads--Greece--History.
Transportation--Greece--History--19th century.
Transportation--Greece--History--20th century.
Harvard subject headings:
Railroads--Greece--History.
Transportation--Greece--History--19th century.
Transportation--Greece--History--20th century.
Princeton subject headings:
Railroads--Greece--History.
Transportation--Greece--History--19th century.
Transportation--Greece--History--20th century.