Cita APA (7a ed.)

Cowan, R., & Ó'Brógáin, S. (2017). Roman legionary, 109-58 BC: The age of Marius, Sulla and Pompey the Great (1st published in Great Britain.). Osprey.

Cita Chicago Style (17a ed.)

Cowan, Ross, y Seán Ó'Brógáin. Roman Legionary, 109-58 BC: The Age of Marius, Sulla and Pompey the Great. 1st published in Great Britain. Oxford: Osprey, 2017.

Cita MLA (9a ed.)

Cowan, Ross, y Seán Ó'Brógáin. Roman Legionary, 109-58 BC: The Age of Marius, Sulla and Pompey the Great. 1st published in Great Britain. Osprey, 2017.