APA (7th ed.) Citation

Uderzo, A. (2004). Secret weapon. Orion Books Ltd.

Chicago Style (17th ed.) Citation

Uderzo, Albert. Secret Weapon. London: Orion Books Ltd, 2004.

MLA (9th ed.) Citation

Uderzo, Albert. Secret Weapon. Orion Books Ltd, 2004.

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