McGinniss, J. (1991). Cruel doubt. Simon & Schuster.
Lua i Stíl Chicago (17ú heag.)McGinniss, Joe. Cruel Doubt. Simon & Schuster, 1991.
Lua MLA (8ú heag.)McGinniss, Joe. Cruel Doubt. Simon & Schuster, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.