Columbia subject headings:
Yeats, W. B. (William Butler), 1865-1939--Versification.
Harvard subject headings:
English language--Ireland--Versification.
Poetics--History--20th century
Yeats, W. B. (William Butler), 1865-1939
Yeats, W. B. (William Butler), 1865-1939--Versification.
Princeton subject headings:
English language--Ireland--Versification.
Poetics.
Yeats, W. B. (William Butler), 1865-1939--Versification.