APA

Stanton A., Tazzyman D., . (2007). Mr Gum and the Biscuit Billionaire. London: Egmot.

Chicago

Stanton Andy, Tazzyman David, . 2007. Mr Gum and the Biscuit Billionaire. London: Egmot.

Harvard

Stanton A., Tazzyman D., . (2007). Mr Gum and the Biscuit Billionaire. London: Egmot.

MLA

Stanton Andy, Tazzyman David, . Mr Gum and the Biscuit Billionaire. London: Egmot. 2007.