Cita APA (7a ed.)

Nicolle, D., Windrow, M., & McBride, A. (1984). The Age of Charlemagne. Osprey.

Cita Chicago Style (17a ed.)

Nicolle, David, Martin Windrow, y Angus McBride. The Age of Charlemagne. London: Osprey, 1984.

Cita MLA (9a ed.)

Nicolle, David, et al. The Age of Charlemagne. Osprey, 1984.