APA (7th ed.) Citation

Uderzo, Goscinny, Bell, A., & Hockridge, D. (1991). Asterix and the secret weapon. Hodder & Stoughton.

Chicago Style (17th ed.) Citation

Uderzo, Goscinny, Anthea Bell, and Derek Hockridge. Asterix and the Secret Weapon. London: Hodder & Stoughton, 1991.

MLA (9th ed.) Citation

Uderzo, et al. Asterix and the Secret Weapon. Hodder & Stoughton, 1991.