Patten, C. (2008). What next?: Surviving the twenty-first century. Allen Lane.
Citazione stile Chigago Style (17a edizione)Patten, Chris. What Next?: Surviving the Twenty-first Century. London: Allen Lane, 2008.
Citatione MLA (8a ed.)Patten, Chris. What Next?: Surviving the Twenty-first Century. Allen Lane, 2008.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.