Cita APA (7a ed.)

Kelly, N., Rees, R., & Shuter, J. (1999). Roman empire and Medieval realms (1. publ., 2. [print].). Heinemann.

Cita Chicago Style (17a ed.)

Kelly, Nigel, Rosemary Rees, y Jane Shuter. Roman Empire and Medieval Realms. 1. publ., 2. [print]. Oxford [u.a.]: Heinemann, 1999.

Cita MLA (9a ed.)

Kelly, Nigel, et al. Roman Empire and Medieval Realms. 1. publ., 2. [print]. Heinemann, 1999.