APA (7th ed.) Citation

Smith, A. T. (2018). Mr. Penguin and lost treasure. Hodder Children's Books.

Chicago Style (17th ed.) Citation

Smith, Alex T. Mr. Penguin and Lost Treasure. Great Britain: Hodder Children's Books, 2018.

MLA (9th ed.) Citation

Smith, Alex T. Mr. Penguin and Lost Treasure. Hodder Children's Books, 2018.

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