APA (7th ed.) Citation

Dahl, R., & Blake, Q. (2016). George's marvellous medicine. Puffin.

Chicago Style (17th ed.) Citation

Dahl, Roald, and Quentin Blake. George's Marvellous Medicine. London: Puffin, 2016.

MLA (9th ed.) Citation

Dahl, Roald, and Quentin Blake. George's Marvellous Medicine. Puffin, 2016.

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