APA (7th ed.) Citation

Blyton, E. (2000). The O'Sullivan Twins. Egmont Books Limited.

Chicago Style (17th ed.) Citation

Blyton, Enid. The O'Sullivan Twins. London: Egmont Books Limited, 2000.

MLA (9th ed.) Citation

Blyton, Enid. The O'Sullivan Twins. Egmont Books Limited, 2000.

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