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