APA (7th ed.) Citation

Goscinny, Uderzo, Bell, A., & Hockridge, D. (1978). Obelix and Co. Hodder and Stoughton.

Chicago Style (17th ed.) Citation

Goscinny, Uderzo, Andrea Bell, and Derek Hockridge. Obelix and Co. London: Hodder and Stoughton, 1978.

MLA (9th ed.) Citation

Goscinny, et al. Obelix and Co. Hodder and Stoughton, 1978.