APA (7th ed.) Citation

Yeats, J. B., Elton, O., & Hone, J. M. (1945). Letters to his son, W. B. Yeats and others 1869-1922. Faber and Faber.

Chicago Style (17th ed.) Citation

Yeats, John Butler, Oliver Elton, and Joseph M. Hone. Letters to His Son, W. B. Yeats and Others 1869-1922. London: Faber and Faber, 1945.

MLA (9th ed.) Citation

Yeats, John Butler, et al. Letters to His Son, W. B. Yeats and Others 1869-1922. Faber and Faber, 1945.

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