Cita APA (7a ed.)

Yeats, W. B., Kelly, J., Gould, W., & Toomey, D. (1997). The collected letters of W.B. Yeats. Clarendon.

Cita Chicago Style (17a ed.)

Yeats, W. B., John Kelly, Warwick Gould, y Deirdre Toomey. The Collected Letters of W.B. Yeats. Oxford: Clarendon, 1997.

Cita MLA (9a ed.)

Yeats, W. B., et al. The Collected Letters of W.B. Yeats. Clarendon, 1997.