Columbia subject headings:
Rome--History--Kings, 753-510 B.C.
Rome--History--Republic, 510-30 B.C.
Harvard subject headings:
Rome--History--Kings, 753 B.C.-510 B.C.
Rome--History--Republic, 510 B.C.-30 B.C.
Princeton subject headings:
Rome--History--Republic, 510-30 B.C.
Rome--History--To 510 B.C.