Cita APA (7a ed.)

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.