Citazione Stile APA (7a Edizione)

Ballard, M., Mathias, P., Floyd, G., & Jordan, S. (1970). Faith and violence: The birth of medieval Europe ; AD 800 - 900. Methuen.

Citazione stile Chigago Style (17a edizione)

Ballard, Martin, Peter Mathias, Gareth Floyd, e Stuart Jordan. Faith and Violence: The Birth of Medieval Europe ; AD 800 - 900. London [u.a.]: Methuen, 1970.

Citatione MLA (9a ed.)

Ballard, Martin, et al. Faith and Violence: The Birth of Medieval Europe ; AD 800 - 900. Methuen, 1970.