APA (7th ed.) Citation

Maclean, M. (1926). The Literature of the Celts (New. ed.). Blackie.

Chicago Style (17th ed.) Citation

Maclean, Magnus. The Literature of the Celts. New. ed. London, Glasgow, Bombay: Blackie, 1926.

MLA (9th ed.) Citation

Maclean, Magnus. The Literature of the Celts. New. ed. Blackie, 1926.