Simpson, H., & Simpson, H. (2006). Constitutional. Vintage.
Lua i Stíl Chicago (17ú heag.)Simpson, Helen, agus Helen Simpson. Constitutional. London: Vintage, 2006.
Lua MLA (9ú heag.)Simpson, Helen, agus Helen Simpson. Constitutional. Vintage, 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.