Joseph Conrad. (2019). Heart of Darkness (Penguin Essentials). Penguin Classics.
Lua i Stíl Chicago (17ú heag.)Joseph Conrad. Heart of Darkness (Penguin Essentials). Penguin Classics, 2019.
Lua MLA (9ú heag.)Joseph Conrad. Heart of Darkness (Penguin Essentials). Penguin Classics, 2019.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.