Columbia subject headings:
Famines--Greece--History.
Famines--Rome--History.
Food supply--Greece--History.
Food supply--Rome--History.
Harvard subject headings:
Famines--Greece--History.
Famines--Rome--History.
Food supply--Greece--History.
Food supply--Rome--History.
Princeton subject headings:
Famines--Greece--History.
Famines--Rome--History.
Food supply--Greece--History.
Food supply--Rome--History.