APA (7th ed.) Citation

Blyton, E., & Paterson, A. (2021). A summertime mystery. Hodder Children's Books.

Chicago Style (17th ed.) Citation

Blyton, Enid, and Alex Paterson. A Summertime Mystery. UK: Hodder Children's Books, 2021.

MLA (9th ed.) Citation

Blyton, Enid, and Alex Paterson. A Summertime Mystery. Hodder Children's Books, 2021.

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