Kay, P. (2007). The sound of laughter. Arrow Books.
Lua i Stíl Chicago (17ú heag.)Kay, Peter. The Sound of Laughter. London: Arrow Books, 2007.
Lua MLA (9ú heag.)Kay, Peter. The Sound of Laughter. Arrow Books, 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.