Columbia subject headings:
Harvard subject headings:
Mechanization--Greece.
Olive oil industry--Greece--History.
Olive oil presses--Greece--History.
Princeton subject headings:
Diesel motor--Greece.
Mechanization--Technological innovations--Greece--History.
Olive oil industry--Technological innovations--Greece--History.
Olive oil presses--Technological innovations--Greece--History.
Steam-engines--Greece.