Cita APA (7a ed.)

Kidson, P. (1967). The medieval world (2a imp.). Paul Hamlyn.

Cita Chicago Style (17a ed.)

Kidson, Peter. The Medieval World. 2a imp. London: Paul Hamlyn, 1967.

Cita MLA (9a ed.)

Kidson, Peter. The Medieval World. 2a imp. Paul Hamlyn, 1967.