Cita APA (7a ed.)

Simkins, M., & Embleton, R. (2008). The Roman army from Hadrian to Constantine (28th impression.). Osprey.

Cita Chicago Style (17a ed.)

Simkins, Michael, y Ronald Embleton. The Roman Army from Hadrian to Constantine. 28th impression. Oxford: Osprey, 2008.

Cita MLA (9a ed.)

Simkins, Michael, y Ronald Embleton. The Roman Army from Hadrian to Constantine. 28th impression. Osprey, 2008.