Lua APA (7ú heag.)

Barber, M. (2003). the two cities: Medieval europe 1050-1320 (Second edition.). Routledge.

Lua i Stíl Chicago (17ú heag.)

Barber, Malcolm. The Two Cities: Medieval Europe 1050-1320. Second edition. London: Routledge, 2003.

Lua MLA (9ú heag.)

Barber, Malcolm. The Two Cities: Medieval Europe 1050-1320. Second edition. Routledge, 2003.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.