Cita APA (7a ed.)

Campbell, D. B. (2006). Besieged: Siege warfare in the ancient world. Osprey.

Cita Chicago Style (17a ed.)

Campbell, Duncan B. Besieged: Siege Warfare in the Ancient World. Oxford: Osprey, 2006.

Cita MLA (9a ed.)

Campbell, Duncan B. Besieged: Siege Warfare in the Ancient World. Osprey, 2006.