APA (7th ed.) Citation

Reynolds, G., Zeger, L., & Dexter, J. (2011). The difference engine. Innova.

Chicago Style (17th ed.) Citation

Reynolds, Graham, Leah Zeger, and Jonathan Dexter. The Difference Engine. St. Paul, Minn.: Innova, 2011.

MLA (9th ed.) Citation

Reynolds, Graham, et al. The Difference Engine. Innova, 2011.