APA (7th ed.) Citation

Birkinshaw, M., & Martyr Paula. Monster haircut! Ladybird Books.

Chicago Style (17th ed.) Citation

Birkinshaw, Marie, and Martyr Paula. Monster Haircut! London: Ladybird Books.

MLA (9th ed.) Citation

Birkinshaw, Marie, and Martyr Paula. Monster Haircut! Ladybird Books.

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