Columbia subject headings:
Harvard subject headings:
Civilization, Classical, in literature.
Greece--In literature.
Rome--In literature.
Yeats, W. B. (William Butler), 1865-1939--Knowledge--Greece.
Yeats, W. B. (William Butler), 1865-1939--Knowledge--Rome.
Princeton subject headings:
Civilization, Classical, in literature.
Greece--In literature.
Rome--In literature.
Yeats, W. B. (William Butler), 1865-1939--Knowledge--Greece.
Yeats, W. B. (William Butler), 1865-1939--Knowledge--Rome.