APA (7th ed.) Citation

Blyton, E. (1942). Circus days again. Armada books.

Chicago Style (17th ed.) Citation

Blyton, Enid. Circus Days Again. London: Armada books, 1942.

MLA (9th ed.) Citation

Blyton, Enid. Circus Days Again. Armada books, 1942.

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