APA (7th ed.) Citation

Uderzo, Goscinny, Bell, A., & Hockridge, D. (1996). Asterix and Obelix all at sea. Hodder & Stoughton.

Chicago Style (17th ed.) Citation

Uderzo, Goscinny, Anthea Bell, and Derek Hockridge. Asterix and Obelix All at Sea. London: Hodder & Stoughton, 1996.

MLA (9th ed.) Citation

Uderzo, et al. Asterix and Obelix All at Sea. Hodder & Stoughton, 1996.