APA (7th ed.) Citation

Pratchett, T. (2005). Thud!: A novel of Discworld. HarperCollins.

Chicago Style (17th ed.) Citation

Pratchett, Terry. Thud!: A Novel of Discworld. New York: HarperCollins, 2005.

MLA (9th ed.) Citation

Pratchett, Terry. Thud!: A Novel of Discworld. HarperCollins, 2005.

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