Southern, R. W., & Southern, R. W. (2002). Foundations. Blackwell.
Lua i Stíl Chicago (17ú heag.)Southern, Richard W., agus Richard W. Southern. Foundations. Oxford [u.a.]: Blackwell, 2002.
Lua MLA (8ú heag.)Southern, Richard W., agus Richard W. Southern. Foundations. Blackwell, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.