APA (7th ed.) Citation

Yeats, W. B., Yeats, G., & Saddlemyer, A. (2011). W. B. Yeats and George Yeats: The letters (1. publ.). Oxford Univ. Press.

Chicago Style (17th ed.) Citation

Yeats, William Butler, Georgie Yeats, and Ann Saddlemyer. W. B. Yeats and George Yeats: The Letters. 1. publ. Oxford [u.a.]: Oxford Univ. Press, 2011.

MLA (9th ed.) Citation

Yeats, William Butler, et al. W. B. Yeats and George Yeats: The Letters. 1. publ. Oxford Univ. Press, 2011.