APA (7th ed.) Citation

Crotty, P., & Heaney, S. (2010). The Penguin book of Irish poetry. Penguin Classics.

Chicago Style (17th ed.) Citation

Crotty, Patrick, and Seamus Heaney. The Penguin Book of Irish Poetry. London: Penguin Classics, 2010.

MLA (9th ed.) Citation

Crotty, Patrick, and Seamus Heaney. The Penguin Book of Irish Poetry. Penguin Classics, 2010.

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