APA (7th ed.) Citation

Ladybird. (2013). Goodnight Tractor. Puffin Books.

Chicago Style (17th ed.) Citation

Ladybird. Goodnight Tractor. London: Puffin Books, 2013.

MLA (9th ed.) Citation

Ladybird. Goodnight Tractor. Puffin Books, 2013.

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