Cita APA (7a ed.)

Priestley, H. E. (1976). The observer's book of ancient and Roman Britain. Frederick Warne.

Cita Chicago Style (17a ed.)

Priestley, H. E. The Observer's Book of Ancient and Roman Britain. London ; New York: Frederick Warne, 1976.

Cita MLA (9a ed.)

Priestley, H. E. The Observer's Book of Ancient and Roman Britain. Frederick Warne, 1976.