Citazione Stile APA (7a Edizione)

Patrick, J., Packham, M., & Bird, S. (1986). The age of invasions: Britain 55 BC - AD 1200 (1. publ., reprinted (revised).). Murray.

Citazione stile Chigago Style (17a edizione)

Patrick, John, Mollie Packham, e Susan Bird. The Age of Invasions: Britain 55 BC - AD 1200. 1. publ., reprinted (revised). London: Murray, 1986.

Citatione MLA (9a ed.)

Patrick, John, et al. The Age of Invasions: Britain 55 BC - AD 1200. 1. publ., reprinted (revised). Murray, 1986.