Columbia subject headings:
Rome--History--Empire, 30 B.C.-284 A.D.
Rome--History--Republic, 265-30 B.C.
Rome--Politics and government--265-30 B.C.
Rome--Politics and government--30 B.C.-284 A.D.
Harvard subject headings:
Political science--Decision making
Rome--History--To 1500.
Rome--Politics and government--To 1500.
Rome. Senate--Decision making--History.
Rome. Senate--History--To 1500.
Princeton subject headings:
Political science--Decision making.
Rome--History--To 1500.
Rome--Politics and government--To 1500.
Rome. Senate--Decision making--History.
Rome. Senate--History--To 1500.