APA (7th ed.) Citation

Blyton, E. (2009). The Mystery of the Strange Messages. Eurokids.

Chicago Style (17th ed.) Citation

Blyton, Enid. The Mystery of the Strange Messages. London: Eurokids, 2009.

MLA (9th ed.) Citation

Blyton, Enid. The Mystery of the Strange Messages. Eurokids, 2009.

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