Lua APA (7ú heag.)

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

Lua i Stíl Chicago (17ú heag.)

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

Lua MLA (9ú heag.)

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

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