APA aipamena

Patten, C. (2008). What next?: Surviving the twenty-first century. Allen Lane.

Chicago Style aipamena

Patten, Chris. What Next?: Surviving the Twenty-first Century. London: Allen Lane, 2008.

MLA aipamena

Patten, Chris. What Next?: Surviving the Twenty-first Century. Allen Lane, 2008.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.