Vendler, H. Seamus Heaney.
Lua i Stíl Chicago (17ú heag.)Vendler, Helen. Seamus Heaney.
Lua MLA (9ú heag.)Vendler, Helen. Seamus Heaney.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
Lua APA (7ú heag.)