APA (7th ed.) Citation

Pratchett, T. (2007). Johnny and the bomb (1st HarperCollins ed.). HarperCollins Publishers.

Chicago Style (17th ed.) Citation

Pratchett, Terry. Johnny and the Bomb. 1st HarperCollins ed. New York, NY: HarperCollins Publishers, 2007.

MLA (8th ed.) Citation

Pratchett, Terry. Johnny and the Bomb. 1st HarperCollins ed. HarperCollins Publishers, 2007.

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