APA (7th ed.) Citation

Goscinnny, R., & Uderzo, A. O adivinho. Cedibra.

Chicago Style (17th ed.) Citation

Goscinnny, René, and A. Uderzo. O Adivinho. Cedibra.

MLA (8th ed.) Citation

Goscinnny, René, and A. Uderzo. O Adivinho. Cedibra.

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