Patten, C. (2008). What next?: Surviving the twenty-first century. Allen Lane.
Lua i Stíl Chicago (17ú heag.)Patten, Chris. What Next?: Surviving the Twenty-first Century. London: Allen Lane, 2008.
Lua MLA (8ú heag.)Patten, Chris. What Next?: Surviving the Twenty-first Century. Allen Lane, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.