APA (7th ed.) Citation

Yeats, W. B., Friers, R., & Gensamer, T. (1973). Irish folk tales.

Chicago Style (17th ed.) Citation

Yeats, W. B., Rowel Friers, and Ted Gensamer. Irish Folk Tales. 1973.

MLA (9th ed.) Citation

Yeats, W. B., et al. Irish Folk Tales. 1973.