Ross Collins. (2004). Germs. Bloomsbury Publication.
Lua i Stíl Chicago (17ú heag.)Ross Collins. Germs. Great Britain: Bloomsbury Publication, 2004.
Lua MLA (9ú heag.)Ross Collins. Germs. Bloomsbury Publication, 2004.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.