APA (7th ed.) Citation

Jean & Adamson, G. Help a friend. Ladybird Books.

Chicago Style (17th ed.) Citation

Jean and Gareth Adamson. Help a Friend. London: Ladybird Books.

MLA (9th ed.) Citation

Jean and Gareth Adamson. Help a Friend. Ladybird Books.

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