Cita APA (7a ed.)

Birley, R. (1977). Vindolanda: A Roman frontier post on Hadrian's Wall. [s.n.].

Cita Chicago Style (17a ed.)

Birley, Robin. Vindolanda: A Roman Frontier Post on Hadrian's Wall. [S.l.]: [s.n.], 1977.

Cita MLA (9a ed.)

Birley, Robin. Vindolanda: A Roman Frontier Post on Hadrian's Wall. [s.n.], 1977.