Cita APA (7a ed.)

Kelly, N. (1991). The medieval realms. Heinemann.

Cita Chicago Style (17a ed.)

Kelly, Nigel. The Medieval Realms. Oxford [u.a.]: Heinemann, 1991.

Cita MLA (9a ed.)

Kelly, Nigel. The Medieval Realms. Heinemann, 1991.