APA (7th ed.) Citation

Blyton, E., & Hunter, S. (1979). Circus days again. Beaver Books.

Chicago Style (17th ed.) Citation

Blyton, Enid, and Susan Hunter. Circus Days Again. London: Beaver Books, 1979.

MLA (9th ed.) Citation

Blyton, Enid, and Susan Hunter. Circus Days Again. Beaver Books, 1979.