Cita APA (7a ed.)

POWELL, T. (1959). The Celts. Thames and Hudson.

Cita Chicago Style (17a ed.)

POWELL, T.G.E. The Celts. London: Thames and Hudson, 1959.

Cita MLA (9a ed.)

POWELL, T.G.E. The Celts. Thames and Hudson, 1959.