APA (7th ed.) Citation

Powell, T. G. E. (1958). The Celts / by T.G.E. Powell. Thames and Hudson.

Chicago Style (17th ed.) Citation

Powell, T. G. E. The Celts / by T.G.E. Powell. Thames and Hudson, 1958.

MLA (9th ed.) Citation

Powell, T. G. E. The Celts / by T.G.E. Powell. Thames and Hudson, 1958.

Warning: These citations may not always be 100% accurate.