Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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