APA (7th ed.) Zitazioa

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

Chicago Style (17th ed.) Zitazioa

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

MLA (9th ed.) Zitazioa

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