APA (7th ed.) Citation

Hibbert, C., & Dimitri, S. (2010). I'm happy and other fun feelings. Evans Brothers Limited.

Chicago Style (17th ed.) Citation

Hibbert, Clare, and Simona Dimitri. I'm Happy and Other Fun Feelings. London: Evans Brothers Limited, 2010.

MLA (9th ed.) Citation

Hibbert, Clare, and Simona Dimitri. I'm Happy and Other Fun Feelings. Evans Brothers Limited, 2010.