O'Donoghue, B. (1994). Seamus Heaney and the language of poetry. Harvester.
Cita Chicago Style (17a ed.)O'Donoghue, Bernard. Seamus Heaney and the Language of Poetry. New York: Harvester, 1994.
Cita MLA (9a ed.)O'Donoghue, Bernard. Seamus Heaney and the Language of Poetry. Harvester, 1994.
Precaución: Estas citas no son 100% exactas.