Columbia subject headings:
Harvard subject headings:
Dēmosia Epicheirēsis Ēlektrismou--History.
Electric power--Greece--History.
Electric utilities--Greece--History.
Power resources--Greece--History.
Princeton subject headings:
Dēmosia Epicheirēsis Ēlektrismou--History.
Electric power--Greece--History.
Electric utilities--Greece--History.
Power resources--Greece--History.