Cromwell Productions, Carruthers, B., & Clegg, R. (1998). Hadrian's wall: Edge of the empire. Kultur.
Cita Chicago Style (17a ed.)Cromwell Productions, Bob Carruthers, y Richard Clegg. Hadrian's Wall: Edge of the Empire. West Long Branch, NJ: Kultur, 1998.
Cita MLA (8a ed.)Cromwell Productions, et al. Hadrian's Wall: Edge of the Empire. Kultur, 1998.
Precaución: Estas citas no son 100% exactas.