Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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

Atenció: Aquestes cites poden no estar 100% correctes.