APA (7th ed.) Citation

Yeats, W. B., & Yeats, W. B. (2002). A book of Irish verse. Routledge.

Chicago Style (17th ed.) Citation

Yeats, William Butler, and W. B. Yeats. A Book of Irish Verse. Routledge, 2002.

MLA (9th ed.) Citation

Yeats, William Butler, and W. B. Yeats. A Book of Irish Verse. Routledge, 2002.

Warning: These citations may not always be 100% accurate.