Columbia subject headings:
Bards and bardism in literature.
English poetry--Celtic influences.
Yeats, W. B. (William Butler), 1865-1939--Literary style.
Harvard subject headings:
Bards and bardism in literature.
English poetry--Celtic influences
Yeats, W. B. (William Butler), 1865-1939--Literary style.
Princeton subject headings:
Bards and bardism in literature.
Yeats, W. B. (William Butler), 1865-1939--Literary style.