Haffner, S. (2011). Churchill. Editorial Sol90.
Lua i Stíl Chicago (17ú heag.)Haffner, Sebastian. Churchill. Editorial Sol90, 2011.
Lua MLA (8ú heag.)Haffner, Sebastian. Churchill. Editorial Sol90, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.