Columbia subject headings:
Harvard subject headings:
Greece--Foreign relations.
Greece--History.
Rome--Foreign relations.
Rome--History
Princeton subject headings:
Greece--Foreign relations--To 146 B.C.
Greece--Politics and government--To 146 B.C.
Rome--Foreign relations--30 B.C.-284 A.D.
Rome--Foreign relations--510-30 B.C.
Rome--Politics and government--30 B.C.-284 A.D.
Rome--Politics and government--510-30 B.C.