APA (7th ed.) Citation

Heaney, S. (1965). Eleven poems/ by Seamus Heaney (First Edition, First Issue.). Festival Publications.

Chicago Style (17th ed.) Citation

Heaney, Seamus. Eleven Poems/ by Seamus Heaney. First Edition, First Issue. Belfast: Festival Publications, 1965.

MLA (9th ed.) Citation

Heaney, Seamus. Eleven Poems/ by Seamus Heaney. First Edition, First Issue. Festival Publications, 1965.

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