Columbia subject headings:
Harvard subject headings:
Dion, approximately 408 B.C.-354 B.C.
Dionysius, the Younger.
Plato
Syracuse (Italy)--Politics and government.
Princeton subject headings:
Dion, approximately 408 B.C.-354 B.C.
Dionysius, the Younger
Plato.
Syracuse (Italy)--Politics and government.