Birley, R. (1990). The best of Hadrian's Wall. R. Birley.
Cita Chicago Style (17a ed.)Birley, Robin. The Best of Hadrian's Wall. Greenhead, via Carlisle: R. Birley, 1990.
Cita MLA (9a ed.)Birley, Robin. The Best of Hadrian's Wall. R. Birley, 1990.
Precaución: Estas citas no son 100% exactas.