Spence. Andrew Jackson Donelson. Vanderbilt University Press.
Lua i Stíl Chicago (17ú heag.)Spence. Andrew Jackson Donelson. Vanderbilt University Press.
Lua MLA (8ú heag.)Spence. Andrew Jackson Donelson. Vanderbilt University Press.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.