Columbia subject headings:
Civilization, Classical, in literature.
Civilization, Classical.
Classical literature--Influence.
Occultism in literature.
Yeats, W. B. (William Butler), 1865-1939--Knowledge and learning.
Harvard subject headings:
Classical literature--History and criticism
Yeats, W. B. (William Butler), 1865-1939--Knowledge--Literature.
Princeton subject headings:
Classical literature--History and criticism.
Yeats, W. B. (William Butler), 1865-1939--Knowledge--Literature.