APA (7th ed.) Citation

Murray, W., & Wingfield, J. H. Adventure at the castle. Ladybird Books Ltd.

Chicago Style (17th ed.) Citation

Murray, W., and J. H. Wingfield. Adventure at the Castle. Loughborough: Ladybird Books Ltd.

MLA (9th ed.) Citation

Murray, W., and J. H. Wingfield. Adventure at the Castle. Ladybird Books Ltd.

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