Foster, H. (2012). Creaturely Cobra. October.
Lua i Stíl Chicago (17ú heag.)Foster, Hal. "Creaturely Cobra." October 2012.
Lua MLA (8ú heag.)Foster, Hal. "Creaturely Cobra." October, 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.