Columbia subject headings:
Symbolism in literature.
Yeats, W. B. (William Butler), 1865-1939--Symbolism.
Harvard subject headings:
Symbolism in literature.
Yeats, W. B. (William Butler), 1865-1939
Princeton subject headings:
Symbolism in literature.
Yeats, W. B. (William Butler), 1865-1939--Symbolism.