Columbia subject headings:
Agriculture--Rome--History.
Rome--Economic conditions.
Slavery--Economic aspects--Rome.
Viticulture--Rome--History.
Harvard subject headings:
Agriculture--Rome--History.
Rome--Economic conditions.
Slavery--Economic aspects--Rome.
Viticulture--Rome--History.
Princeton subject headings:
Rome--Economic conditions--30 B.C.-284 A.D.
Rome--Economic conditions--510-30 B.C.
Slavery--Rome--History.
Slaves--Rome--History.