APA (7th ed.) Citation

Yeats, W. B., McKenna, S., Cusack, C., & Sackler, H. (1972). The poetry of Yeats. Caedmon.

Chicago Style (17th ed.) Citation

Yeats, W. B., Siobhán McKenna, Cyril Cusack, and Howard Sackler. The Poetry of Yeats. New York, NY: Caedmon, 1972.

MLA (8th ed.) Citation

Yeats, W. B., et al. The Poetry of Yeats. Caedmon, 1972.