Cita APA (7th ed.)

Williams, H. (2006). Days that changed the world. Quercus.

Cita Chicago (17th ed.)

Williams, Hywel. Days That Changed the World. London: Quercus, 2006.

Cita MLA (9th ed.)

Williams, Hywel. Days That Changed the World. Quercus, 2006.