Columbia subject headings:
Blake, William, 1757-1827--Criticism and interpretation.
Symbolism in literature.
Yeats, W. B. (William Butler), 1865-1939.
Harvard subject headings:
Blake, William, 1757-1827--Criticism and interpretation.
Symbolism in literature.
Yeats, W. B. (William Butler), 1865-1939
Princeton subject headings: