APA (7th ed.) Citation

Cecelia, . A. (2009). The book of tomorrow. HarperCollins.

Chicago Style (17th ed.) Citation

Cecelia, Ahern. The Book of Tomorrow. London: HarperCollins, 2009.

MLA (9th ed.) Citation

Cecelia, Ahern. The Book of Tomorrow. HarperCollins, 2009.

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