Heaney, M. (1997). Time is of the essence.
Lua i Stíl Chicago (17ú heag.)Heaney, M. Time Is of the Essence. 1997.
Lua MLA (9ú heag.)Heaney, M. Time Is of the Essence. 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.